🏗️ Intelligent Construction ERP · built for India

Construction ERP Software for Indian Builders & Contractors

Cornerstone AI is an intelligent construction ERP software that runs your entire building business on one platform — projects, procurement, job costing, GST billing, RA bills and Tally integration — with an AI layer that predicts delays, reschedules around the monsoon and finds cost savings. Stop running crores of construction on WhatsApp and Excel.

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500+ features · GST, RA bills & Tally ready · AI delay prediction · multi-site portfolio

Cornerstone AI Portfolio Dashboard All sites · Live KT Active projects 18 ▲ 3 this quarter Portfolio value ₹142 Cr On budget Cost to budget 96.4% Within target At-risk tasks 7 AI flagged Cash flow — billing vs spend Last 7 months (₹ Cr) AprMayJunJulAugSepOct Billed Spent AI insights Delay risk · Tower B Slab work 4 days behind Weather · Chennai site Rain Thu–Fri, reschedule Cost saving found Steel vendor 6% cheaper SITEPROGRESSHEALTHCOST Marina Residency On track 98%
500+
Features built in
Not a project-tracker with an ERP label
8–12%
Material waste recoverable
Request → PO → GRN → inventory control
0
Double entry to Tally
GST, TDS & RA bills export clean
AI
Delay & cost foresight
Early warnings, not after-the-fact
01 What it is

All-in-one construction management software for every stage of the build

Cornerstone AI replaces the tangle of WhatsApp groups, Excel budgets and paper registers with a single live system. Every lead, purchase order, GRN, RA bill, inspection and payment lives in one place — so site engineers, project managers and accounts work from the same data instead of chasing each other for updates. Then the AI layer turns that data into foresight.

Residential builders Civil contractors Interior firms Infrastructure / EPC Real-estate developers

Project & portfolio control

Progress, health, cost-to-budget and milestones across every active site from one real-time dashboard.

Procure-to-pay with GRN

Material requests, purchase orders, GRN receipts, inventory and supplier ledgers connected end to end.

Job costing & GST billing

Budget vs actual by cost head, RA / progress billing, supplier invoices and clean Tally export.

Quality, safety & approvals

Digital checklists, hold points, safety logs and configurable approval chains that stop rework before it starts.

AI intelligence

Delay prediction, weather-aware scheduling, cost-saving insight and Vastu planning built in, not bolted on.

Roles & white-label

Role-based access, custom fields and white-label appearance so the ERP fits your team, not the other way round.

02 Who it’s for

Construction ERP for builders, civil contractors & real-estate developers

From an individual house builder running a handful of sites to a developer managing many towers, Cornerstone AI adapts to your scale and workflow.

Persona 01

Builders & custom-home contractors

Juggling multiple simultaneous sites, each with an owner expecting updates and transparent billing. Stop pilferage, tame monsoon reschedules, and give every client real progress instead of WhatsApp forwards.

Multi-siteOwner updatesSite inventory
Persona 02

Civil & sub-contractors

Winning work on tight margins where procurement discipline and job costing decide profit. Tie every PO and GRN to a cost head, raise RA bills, and know your real position on each job.

Job costingRA billsPO → GRN
Persona 03

Real-estate developers

Running multiple phases with sales, finance, procurement and RERA compliance to coordinate. Get a portfolio view, lead-to-booking CRM, configurable approvals and books that reconcile with Tally every month.

Portfolio viewCRM & bookingCompliance
03 The modules — with real screens

Construction ERP modules: projects, procurement, billing, job costing & AI

This is not generic project management with a “construction” label. Every module below is a working screen in the product — explore how each one actually looks and works.

Projects & schedule

Construction Project Management Software

See every site’s real position at a glance — live progress %, phase schedule, milestones and a today-line that shows exactly what’s slipping, across one site or your whole multi-project portfolio.

  • Phase-wise schedule
  • Progress & health
  • Milestone tracking
  • Multi-site portfolio
Cornerstone Marina Residency · Schedule On track Overall progress62% Days to handover184 Open tasks37 Phase schedule JulAugSepOctNov Foundation Superstructure Brickwork MEP rough-in Finishes Handover Today MEP rough-in slipping — 2 tasks late
Sales & CRM

Construction & Real-Estate CRM Software

From lead to signed booking, nothing slips. A construction-specific sales pipeline — leads, site visit, proposal, negotiation, won — with WhatsApp follow-ups, deal value and win-rate analytics. Ideal as a real-estate CRM for developers selling flats and plots.

  • Visual pipeline board
  • WhatsApp follow-ups
  • Proposals & agreements
  • Win-rate analytics
Cornerstone Sales Pipeline + New lead LEADS · 6 R. Sharma Villa ₹1.8 Cr · Chennai Green Meadows ₹4.2 Cr · Pune SITE VISIT · 4 Lotus Apartments ₹9.5 Cr · Bengaluru PROPOSAL · 3 Skyline Towers ₹22 Cr · Hyderabad WON · 2 Marina Residency ₹31 Cr · Chennai Pipeline value₹68.5 Cr Win rate34% Avg. deal cycle46 days Recent activity WhatsApp follow-up sent · Lotus Apartments Proposal v2 shared · Skyline Towers
Materials & procurement

Construction Procurement & GRN Software

Request → purchase order → GRN → invoice, fully tracked. Every purchase moves through a controlled flow with material-vs-PO tracking, so you catch short deliveries and over-ordering before they cost you. This is where 8–12% of material leak gets recovered.

  • Purchase orders & GRN
  • Material vs PO tracking
  • Supplier ledgers
  • Multi-level approvals
Cornerstone Purchase Orders & GRN + Raise PO Request › PO › GRN › Invoice PO NO.SUPPLIERPO QTY / RECDSTATUS PO-2041 UltraTech Cement 500 / 500 bags GRN done PO-2042 Tata Steel 12 / 9 MT Partial PO-2043 Asian Paints 0 / 220 L Open PO-2044 Finolex Pipes 80 / 80 units GRN done Material vs PO Received against ordered 76% received · ₹2.1 Cr value Pending approvals 4 POs awaiting Review approvals
Finance & billing

GST Billing, RA Bill & Tally Integration Software

Raise GST tax invoices and running-account (RA) bills with retention, CGST/SGST, TDS and WCT handled correctly — then export sales vouchers, GST ledgers and TDS entries straight to Tally with zero double entry. The India compliance stack most global tools skip.

  • RA / progress billing
  • GST tax invoices
  • Retention & TDS/WCT
  • Native Tally export
Cornerstone GST Tax Invoice · RA Bill → Tally Save TAX INVOICE RA Bill No. 06 · Running Account GSTIN33AAB…1Z5 DESCRIPTIONQTYAMOUNT RCC work — slab (this bill)320 m³₹18,40,000 Brickwork — 230mm640 m²₹5,76,000 Plastering1,200 m²₹3,60,000 Less: retention @ 5%− ₹1,38,800 CGST 9%₹2,37,240 SGST 9%₹2,37,240 Net payable ₹31,11,920 TDS u/s 194C deducted · WCT as applicable GST portal ready Contract billing Billed to date ₹2.4 Cr 64% of ₹3.75 Cr Retention held ₹12.4 L Tally export Sales voucher GST ledgers TDS entries No double entry
Job costing

Construction Job Costing Software (Budget vs Actual)

Live budget vs actual by cost head. Every material receipt, labour wage and subcontractor bill updates project cost the moment it’s recorded. Overruns surface as they develop — not after month-end reconciliation, when recovery is impossible.

  • Budget vs actual bars
  • Variance by cost head
  • Live, not month-end
  • Overrun alerts
Cornerstone Job Costing · Budget vs Actual Marina Residency Budget₹3.75 Cr Actual to date₹2.41 Cr Variance+₹6.2 L Cost heads Budget Actual Material 83% Labour 92% Subcontract 104% Overheads
Execution

Construction Quality, Safety & Approval Software

Digital QC checklists with hold points, a site safety log, and configurable approval chains where every sign-off is stamped with name, time and action — so management always knows who authorised what. Snag and punch-list ready.

  • QC checklists & hold points
  • Safety log & PPE
  • Approval chains
  • Full audit trail
Cornerstone Quality, Safety & Approvals + New QC Slab casting — QC checklist Block A · Level 4 · Hold point Reinforcement as per drawing Cover blocks placed Shuttering level checked Electrical conduits laid Pending Pour approval sign-off 3 of 5 checks cleared · hold active Request approval Photos Safety log Days without incident 47 PPE compliance 96% 2 toolbox talks this week Approval chain Site engineer ✓ Project mgr ✓ Director — due Every action logged with timestamp
Site inventory

Construction Material & Inventory Management Software

Know your real stock on every site — live stock value, reorder alerts and daily consumption trends per site, so you never halt a pour for want of sand, or let cement over-stock and set.

  • Stock by site
  • Reorder alerts
  • Consumption trends
  • Issue & return logs
Cornerstone Site Inventory & Stock + Issue stock Stock value₹48.2 L SKUs tracked214 Below reorder6 items MATERIALIN STOCKREORDERSTATUS OPC 53 Cement1,240 bags400 Healthy TMT Steel 16mm8.4 MT6 MT Watch River Sand120 cft500 Reorder M-Sand860 cft400 Healthy Daily consumption trend +8%
Documents & MIS

Document Management & Daily Progress Report (DPR) Software

A single register for drawings, BOQs and auto-generated daily progress reports, with role-based access and a full audit trail. One tap turns live data into a client or management MIS report.

  • Drawing & doc register
  • Auto DPR
  • MIS analytics
  • Team updates
Cornerstone Reports · Anna Nagar G+4 One capture feeds every report · DPR to board Auto-build ON DPR (daily) Weekly Monthly MIS Board pack Daily Progress Report Tue 14 Oct WeatherRain 2-4pm Manpower18 skilled · 24 helper Activity2nd-floor slab shuttering Progress 70% Material120 cement bags Hold-upRain stop · 2 hrs lost 3 site photos attached · filed by site engineer Rolls up DPR Weekly Monthly MIS Board / bank pack Same data · 4 audiences Scheduled delivery Month-end MIS to landowner + bank · auto-emailed ON You email a report · you watch a dashboard One site entry becomes every report, no re-typing Build
Administration

Roles, Permissions & White-Label Setup

A clear role-permission matrix, custom fields, and white-label appearance that lets you set the product name and brand colour — with every setup change logged in an audit trail.

  • Role-permission matrix
  • Custom fields
  • White-label brand
  • Setup audit trail
Cornerstone Roles & Permissions + Add role MODULEENGINEERPMDIRECTOR Projects Finance Procurement Approvals Reports Admin setup Custom fields enabled on 4 modules 14 users · 5 roles · 2 sites Appearance Brand colour Product name Cornerstone AI White-label ready Audit trail Role updated · PM User added · S. Kumar Permission revoked Field created · GSTIN Every change timestamped
04 Everything in one place

Full construction ERP module list

All 41 modules of Cornerstone AI, each a working screen in the product — tap any card to open its detailed walkthrough.

Planning & overview

Cornerstone AI Portfolio Dashboard All sites · Live KT Active projects 18 ▲ 3 this quarter Portfolio value ₹142 Cr On budget Cost to budget 96.4% Within target At-risk tasks 7 AI flagged Cash flow — billing vs spend Last 7 months (₹ Cr) AprMayJunJulAugSepOct Billed Spent AI insights Delay risk · Tower B Slab work 4 days behind Weather · Chennai site Rain Thu–Fri, reschedule Cost saving found Steel vendor 6% cheaper SITEPROGRESSHEALTHCOST Marina Residency On track 98%
Overview

Dashboard

One live view of KPIs, cash flow, health and AI alerts across every site.

Explore module →
Cornerstone Marina Residency · Schedule On track Overall progress62% Days to handover184 Open tasks37 Phase schedule JulAugSepOctNov Foundation Superstructure Brickwork MEP rough-in Finishes Handover Today MEP rough-in slipping — 2 tasks late
Overview

Portfolio

Every site compared from one view — progress, margin and cash flow.

Explore module →
Cornerstone Project Templates 6 templates + New 4BHK Villa, standard 86 BOQ items · 5 phases 40-point checklist · v4 Used in 9 projects 2BHK Villa, economy 61 BOQ items · 5 phases 32-point checklist · v2 Used in 6 projects Interior fit-out 44 BOQ items · interiors Used in 4 projects Apartment block 120 BOQ items · 7 phases Used in 3 projects Start a new project from “4BHK Villa, standard” BOQ, phases, rate list and checklist load in automatically. 86 BOQ items 5 phases 40 checklist Create in 1 click
Planning

Project Templates

Start a new project from a standard BOQ, phase plan and checklist.

Explore module →
Cornerstone Schedule · Marina Residency 1 task at risk Plan Gantt timeline NovDecJanFeb Foundation Structure Slab pour3d late Finishing MEP Handover Today’s tasks 2 of 4 done DPC course, Block BSuresh · done Rebar inspection, footingAnita · done Shuttering, Block B first floorSuresh · due today Slab pour prepoverdue 3d
Planning

Tasks & Schedule

Gantt timeline, daily task list and delays caught early.

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Sales & CRM

Cornerstone Sales Pipeline + New lead LEADS · 6 R. Sharma Villa ₹1.8 Cr · Chennai Green Meadows ₹4.2 Cr · Pune SITE VISIT · 4 Lotus Apartments ₹9.5 Cr · Bengaluru PROPOSAL · 3 Skyline Towers ₹22 Cr · Hyderabad WON · 2 Marina Residency ₹31 Cr · Chennai Pipeline value₹68.5 Cr Win rate34% Avg. deal cycle46 days Recent activity WhatsApp follow-up sent · Lotus Apartments Proposal v2 shared · Skyline Towers
Sales

Leads / CRM

Lead flow, site visits and WhatsApp follow-ups to booking.

Explore module →
Cornerstone Proposal · Marina Residency Sent Share PROPOSAL Quotation #PR-2048 · valid 15 days Client: R. Sharma4BHK Villa · Chennai SCOPE ITEMQTYRATEAMOUNT Civil structure — RCC framed2400 sft₹1,850₹44.4 L Finishing — flooring, paint2400 sft₹620₹14.9 L MEP — electrical & plumbing1 lot—₹8.6 L Vastu consultation1 lot—₹0.5 L Subtotal₹68.4 L GST 18%₹12.3 L Total ₹80.7 L 1-click to agreement Converts to a signed agreement & project with no re-entry.
Sales

Proposals

BOQ-based quotations with GST, shared and converted to a project.

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Cornerstone Agreement · Marina Residency Awaiting sign e-Sign LUMP-SUM AGREEMENT Contract #AG-1180 · from Proposal PR-2048 · v2 Client: R. Sharma4BHK Villa · Chennai TERMDETAILVALUE Scope of workCivil · finishing · MEPas BOQ Contract typeLump-sum, GST incl.₹80.7 L Payment schedule5 RA stages10/25/25/25/15 Completion14 months from startMar 2028 Sent 12 Oct Viewed 13 Oct Builder ✓ Client pending Contract value ₹80.7 L Renewal tracked Generated from the accepted proposal · e-signed · versioned.
Sales

Agreements

Generate, e-sign and track contracts, work orders and renewals.

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Cornerstone RA Bill 03 · Marina Residency GST invoice Issue RUNNING ACCOUNT BILL Cumulative measured work against BOQ BOQ ITEMTO-DATE QTYVALUE Civil, RCC framed2400 sftRs 38.0 L Finishing (part)1100 sftRs 10.0 L MEP (part)1 lotRs 4.0 L Work done to dateRs 52.0 L Less RA 01 + RA 02– 38.0 L This bill (RA 03) Gross this billRs 14.0 L Less retention 5%– 0.7 L Less advance recovery– 1.0 L Net claimed + GST Rs 12.3 L Billed vs collected Billed (3 RA bills)Rs 50.3 L CollectedRs 48.0 L Receivable Rs 2.3 L
Sales

Client Billing

RA / progress bills tied to the BOQ, with GST and retention.

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Site execution

Cornerstone RFI log · Marina Residency 2 open + Raise RFI RFIQUESTIONOWNERSTATUS 014Beam depth clash at C3StructuralClosed 1d 015Terrace slope directionArchitectClosed 2d 016Rock at footing F4StructuralDue today 017Tile substitutionArchitect1d left 018Waterproofing detailArchitectOverdue 4d Avg response this month1.6 days RFI-014 Beam depth 600mm clashes with 2.9m ceiling at C3 ↳ Structural consultant · answered in 1 day Reduce beam to 450mm, add 2-T16 bars. Sketch attached.
Execution

RFIs

Raise a site or drawing query, route it, capture the answer, close it.

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Cornerstone Inspection · Plastering, Block B 18/20 pass + Snag Checklist Line and level Surface finish Hollow, west wall Curing done Corner beading Thickness ok No cracks Phase result 1 open snag · not signed off Snag SN-07 photo evidence Hollow plaster 2nd floor, west wall OwnerPlastering contractor Duein 2 days StatusOpen Closes only on re-inspect No close without a passed re-check.
Execution

Quality

Inspections, checklists and snags closed before handover.

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Cornerstone Safety · Marina Residency Talk done + Log Toolbox talk Work at height, Block B Harness & edge protection No loose tools at height Attendance 12 of 12 All signed on mobile Safety checklist PPE worn Scaffold tagged Edge guard, bay 3 Electrical safe 14 of 15 pass · 1 action open Today’s log Near miss logged Scaffold board fell, no injury Unsafe condition Missing edge guard · due today Incidents None today · clear BOCW export
Execution

Safety

Toolbox talks, incident and near-miss logs, corrective actions.

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Cornerstone LAYERS Grid Columns Rebar Dimensions Beams S-204 · Second floor framing plan Structural · opened in browser, no AutoCAD needed R2 · GFC R1 locked ABCDE123 Beam B2 revised R2 1 +– Rev R2 issued 11 Oct · R0 and R1 superseded & locked · openable on phone, laptop or tablet Upload a DWG, open it anywhere View AutoCAD files in the browser, no CAD licence Only the latest approved drawing reaches the site Open
Execution

Drawings

Drawing register with revision control and in-browser DWG viewing.

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Cornerstone FOLDERS ApprovalsContractsRERACertificatesCorrespondenceReports Documents · OMR Apartments 1,840 documents · version-controlled · access by role Search by name, type, party, date or status… metadata DOCUMENTTYPEVERACCESS Sanctioned building planApprovalv2 Mgmt Commencement certificateCertificatev1 Mgmt Flat allotment agreementContractv3 Legal+ Fire NOCNOCv1 All Cube test certificate · M25QA recordv1 Site Sanctioned plan v2 · audit trail Uploaded S.Kumar 02 Sep · approved PM 03 Sep · viewed 41 times · v1 superseded · retain 15 yrs One controlled home for every document Find any paper in seconds, prove who did what Version control · access by role · audit trail · retention Open
Execution

Documents (DMS)

Controlled document storage with metadata, access and audit.

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Cornerstone THREADS Slab pour B2Kitchen socketsTile selectionDrawing S-204Safety toolbox Kitchen sockets · OMR Apartments Tied to drawing A-110 · Flat B-304 · on the record 4 in thread Linked: Drawing A-110 (R3) · Flat B-304 · Task: 2nd fix electrical PM · Anita09:12 Client wants the kitchen socket moved 600mm right, near A-110 grid C. to @Electrician · Ravi09:15 Noted. Shifting as marked on the plan. A-110.png Electrician · Ravi09:18 Acknowledged. Will do before 2nd fix. ✓✓ read Message, @mention, attach a photo or drawing… ↑ Tied to the job, on the record Not lost in a WhatsApp group of 40 messages Searchable · attributable · acknowledged · survives anyone leaving Open
Execution

Communication

In-context project messaging, not scattered across WhatsApp.

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Procurement

Cornerstone Material Master 1,240 items + Item Search by code, name or category… CODEMATERIALCATEGORYUOMRATE CEM-001OPC 53 grade cementCementBagRs 410 STL-016TMT steel Fe 500D 16mmSteelMTRs 62,400 AGG-02020mm coarse aggregateAggregateCumRs 1,250 SND-004M-sand (plastering)SandCumRs 1,480 BRK-002Fly ash brick 230mmMasonryNosRs 8.5 CEM-001 · OPC 53 grade cement Active · HSN 2523 UOMCATEGORYLAST RATESUPPLIERS Bag (50 kg)CementRs 4103 linked Used on 7 projects · rate compared across UltraTech, Ramco, Dalmia · consumption rolled up per site
Materials

Material Master

One clean catalogue of materials, units and rates for every site.

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Cornerstone Indent IND-0472 OMR Apartments · Block B · raised by S. Kumar (site engineer) Pending PM Requested: 3 lines From store: 2 lines To purchase: 1 line ITEMREQIN STORETO BUYSTATUS STL-012TMT Fe500D 12mm 5 MT2 MT3 MT PO raised CEM-001OPC 53 cement 80 bag80 bag0 Issued BND-003Binding wire 18g 40 kg40 kg0 Issued Approval trail Site engineerraised · 09:14 2 Project managerreviewing now Purchasewaiting One indent, two paths 2 lines issued from store · 1 line to a PO Booked to OMR Apartments · Block B job cost Approve
Materials

Material Requests

Site indents routed for approval, then on to a purchase order.

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Cornerstone PO-3042 · Marina Residency Approved Send PURCHASE ORDER Supplier: Sri Cement Traders · from MR-118 Budget: Structurecommitted ITEMQTY / RATEAMOUNT OPC 53 grade cement100 @ Rs 390Rs 39,000 Delivery to site1 lotRs 1,000 GST 28 percentRs 11,200 PO totalRs 51,200 3-way match PO ordered100 bags = GRN received92 bags != Invoice billed100 bags Mismatch flagged: 8-bag gap, Rs 3,120 held. Paid for 92 received.
Materials

Purchase Orders

POs raised against rates and routed through approval by amount.

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Cornerstone GRN-0471 · Marina Residency Part received Save GOODS RECEIPT NOTE Against PO-3042 · Sri Cement Traders Received at gatewith photo ITEMORDEREDRECEIVEDSTATUS OPC 53 grade cement100 bags92 bags8 short Condition–Goodok Inventory updated+ 92 bagsPO balance8 open Feeds the 3-way match PO ordered100 bags GRN GRN received92 bags vs Invoice100 bags GRN proves 92 received. Invoice held for 8-bag gap, Rs 3,120. Pay for 92.
Materials

GRN

Goods receipt against the PO, catching short and over deliveries.

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Cornerstone Stock · ECR Villa store Period: this month · stock valuation Rs 6.8 L Live on-hand ITEMOPENRECDISSUEDCLOSE OPC 53 cement (bag)12040047050 TMT 12mm (MT)3.28.09.12.1 M-sand (cum)14605816 Binding wire (kg)22808814 Cement reconciliation · this month Variance 3.8% ACTUAL (O+R-C)THEORETICALVARIANCE 470 bag452 bag18 bag Actual = opening 120 + received 400 – closing 50. Theoretical from slabs + plaster executed. What the variance means 18 bags above expected · flagged for review Could be wastage, a mis-count or an unbooked issue. The number starts the question. Review
Materials

Inventory

Live site stock, reorder alerts and reconciliation.

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Cornerstone Suppliers · approved vendor list Chennai region · 84 active vendors + Vendor VENDORCATEGORYRATINGON-TIMEGST Sri Ramco Agencies33AABC…GSTIN Cement ★★★★☆96% Filed JSW Steel dealer (OMR)33AADCS…GSTIN Steel ★★★★★99% Filed Coastal Aggregates33AACFC…GSTIN Aggregate ★★★☆☆82% Flagged Anna Tiling Workssubcontractor · labour Subcon ★★★★☆94% Filed Sri Ramco Agencies · Chennai Approved vendor GSTINITEMS PRICEDDELIVERIESREJECTS 33AABC…1Z56 items142 (96% on-time)1.4% Rate history kept per item · payments and TDS tracked · GST return status checked Vendor GST watch 1 vendor flagged: GST return not filed Protect input tax credit before raising the next PO Review
Materials

Suppliers

Vendor master with GST, ledgers and an approved-vendor list.

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Cornerstone Invoice INV-7781 · Marina Held, mismatch Review SUPPLIER INVOICE Sri Cement Traders · GSTIN 33AB…1Z5 · HSN 2523 OPC 53 grade cement100 bags @ 390Rs 39,000 GST 28 percentRs 10,920 Billed totalRs 49,920 3-way match PO ordered100 · rate ok GRN received92 bags Invoice billed100 bags Held: 8-bag gap, Rs 3,120 GST for ITC Tally ready
Materials

Supplier Invoices

Three-way match of invoice, PO and GRN before payment.

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Finance

Cornerstone Job Costing · Budget vs Actual Marina Residency Budget₹3.75 Cr Actual to date₹2.41 Cr Variance+₹6.2 L Cost heads Budget Actual Material 83% Labour 92% Subcontract 104% Overheads
Finance

Job Costing

Live budget vs actual by cost head with overrun alerts.

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Cornerstone Budget · Marina Residency Unfav var 2.4 L P&L view Budget Actual + committed Over budget Civil -1 L Finishing +3 L MEP +1.2 L Site supplies -0.4 L Contingency +1.6 L COST CODEBUDGETACTUALVAR Civil44 L45 L-1 L Finishing + MEP24 L19.8 L+4.2 L Site supplies + contingency incl. Project P&L (forecast) Rs 9.2 L profit Margin 11% (budget 13%)
Finance

Budget & P&L

Estimate vs budget, variance and project profit and loss.

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Cornerstone Payment PAY-2208 · Marina Approved Pay Net payable Tiling subcontractor · firm Approved billRs 3,78,000 Less TDS 194C (2%)– 6,400 Less retention (5%)– 18,900 NET PAYABLE NOW Rs 3,52,700 TDS this month Rs 1.82 L 23 payments · 194C ready for TDS return Retention held Rs 18,900 release at DLP stage tracked for release Due this week Rs 11.4 L · 7 bills Sri SteelThuRs 4.2 L Tiling subcontractor (net)FriRs 3.53 L
Finance

Payments

Record and approve payments against bills, with a clean trail.

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Cornerstone Expenses · Marina Residency This week + Add New expense EXP-4120 RECEIPT attached SpendHardware, fasteners AmountRs 2,400 ProjectMarina Residency Finishing · Site supplies By cost code Site supplies18,400 Fuel & transport14,300 Labour cash8,500 Week totalRs 41,200 Site supplies 22% over budget feeds job cost + Tally Point of purchase to job cost Capture + photo → Code → Approve → Job cost
Finance

Expenses

Site and office expenses captured, approved and booked.

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Cornerstone Petty cash · ECR Villa site Imprest float · custodian: S. Kumar · this week Float Rs 25,000 DATEPURPOSECATEGORYOUTBALANCE MonOpening float——25,000 MonLocal cartage, sandTransport1,20023,800 TueHardware, nails + fittingsConsumables64023,160 WedTea / refreshments, crewSite welfare32022,840 ThuAuto, drawings pickupTransport18022,660 FriMinor repair, pumpRepairs90021,760 Reconciliation · Friday close Short Rs 150 Cash countedRs 21,610 + VouchersRs 3,240 21,610 + 3,240 = 24,850 vs float 25,000 · Rs 150 short, one voucher missing Imprest top-up Replenish Rs 3,240 to restore the Rs 25,000 float Every voucher coded to the ECR job · short flagged for a receipt Top up
Finance

Petty Cash

Site imprest float with reconciliation and a clean cash book.

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Cornerstone Variation order VO-014 OMR Apartments · client-requested · raised 08 Oct Approved 11 Oct Upgrade flooring: vitrified tile to Italian marble Scope: 3 flats, Block A · extra item, not in original BOQ Rate basis: market analysis (non-schedule item) · approved before work started COST IMPACT +Rs 6.4 L TIME IMPACT +9 days REVISED CONTRACT Rs 2.46 Cr PricedQS · 08 Oct PM reviewed09 Oct Client signed11 Oct Flows on: budget revised +Rs 6.4 L · schedule +9 days · queued for next RA bill Approved before the work Billable addition, not a disputed claim Priced, signed, then built · nothing to argue about later Bill
Finance

Change Orders

Price and approve scope changes before the work is built.

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Cornerstone Tally export · October Vouchers mapped to ledgers · GST & TDS intact Reconciled ✓ VOUCHER TYPECOUNTTALLY LEDGERAMOUNT Sales (RA bills)+ GST output 18% 9Sales · client ledgers62.4 L Purchase (supplier inv)+ input GST (ITC) 23Purchase · vendor ledgers41.8 L PaymentTDS 194C deducted 15Bank · TDS payable33.1 L Petty cash (journal)site expense heads 46Expenses · cash1.2 L Tally XML · 93 vouchers, balanced double entry GST + TDS intact LEDGERS MAPPEDGST OUTPUTINPUT ITCTDS 38 / 38Rs 9.5 LRs 6.4 LRs 41 K Import via Gateway of Tally -> Import Data -> Vouchers · control totals tie out One export, one import A month of books, no re-keying into Tally The ERP stays the source of truth · Tally stays the books of account Export XML
Finance

Tally Export

Export sales vouchers, GST ledgers and TDS to Tally, no double entry.

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Assets & equipment

Cornerstone Asset register · plant & machinery 38 assets · book value Rs 3.9 Cr · across 6 sites + Asset ASSET IDEQUIPMENTSITESTATUSUTIL EXC-004Excavator 20TOMR On site 88% BPL-002Batching plant 30ECR On site 74% LDR-007Wheel loaderYard Idle 31% TLM-011Transit mixerPorur In service — LDR-007 · Wheel loader · idle at yard Low utilisation BOOK VALUEUTILISATIONIDLE COST / DAYACTION Rs 11.2 L31% (3 mo)Rs 2,400Hire out? Depreciation 15% WDV · 44 idle days this quarter · costs run whether it works or not Idle plant, counted 1 asset below 40% · Rs 1.05 L idle this quarter Hire it out, move it to a busy site, or sell it Review
Assets

Asset Register

Plant and machinery tracked with utilisation and depreciation.

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Cornerstone Maintenance schedule Preventive · by running hours · 38 machines Uptime 96% MACHINEHOURSNEXT SVCLASTSTATUS Batching plant BPL-002225 hat 250 h12 Sep Due soon Excavator EXC-0041,180 hat 1,300 h28 Aug OK Transit mixer TLM-011510 hat 500 h02 Jul Overdue Wheel loader LDR-00760 hat 250 h20 Sep OK BPL-002 · 250-hour service due soon Plan a slot TASKPARTSEST COSTWHEN Oil, filters, belt4 itemsRs 18,500Sunday Planned on a non-pour day · parts pre-ordered · logged to the machine history PM compliance this quarter 93% services on time · 1 overdue flagged Planned servicing beats a breakdown mid-pour every time Plan
Assets

Maintenance

Preventive schedules, breakdowns and downtime cost.

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Cornerstone Hire register · plant on hire On-hire to off-hire · running charge live · 9 hires active 1 to off-hire MACHINEON-HIREOFF-HIRERATE/DAYCHARGE 12T hydra craneGayatri Crane Services 02 Oct11 Oct1,85016,650 Concrete pumpCoastal Equip Hire 28 Sep05 Oct2,40019,200 Backhoe loaderAnna Plant Hire 20 Sep pending 1,60033,600 ↑ Vibratory rollerOMR Rentals 30 Sep08 Oct1,2009,600 Backhoe loader · off-hire not logged Still charging JOB DONESTILL ON HIREWASTEDACTION 18 Oct3 days idleRs 4,800Off-hire Hire keeps billing by the day until you log off-hire · condition and hours checked at return Off-hire on time Log off-hire the day work ends, not days later Every idle day on hire is pure wasted charge Off-hire
Assets

Rental Equipment

On-hire and off-hire tracking so you never pay for idle plant.

Explore module →

Insight & reporting

Cornerstone Analytics · all projects 8 projects · patterns, trends and the why Last 4 qtrs LAGGING11%avg margin LEADING+9%finishing over est LEADING2.1dRFI response LAGGING96%on-time Margin by quarter · trend target 13% forecast Q1Q2Q3Q4nownext Cross-project pattern found Finishing runs 9% over estimate on 6 of 8 jobs. Traced to one subcontractor’s rework. What happened, why, what next The pattern no single dashboard would show Descriptive to diagnostic to a pattern-based forecast Explore
Insight

Analytics

Trends, cross-project patterns and the leading indicators that warn early.

Explore module →
Cornerstone Reports · Anna Nagar G+4 One capture feeds every report · DPR to board Auto-build ON DPR (daily) Weekly Monthly MIS Board pack Daily Progress Report Tue 14 Oct WeatherRain 2-4pm Manpower18 skilled · 24 helper Activity2nd-floor slab shuttering Progress 70% Material120 cement bags Hold-upRain stop · 2 hrs lost 3 site photos attached · filed by site engineer Rolls up DPR Weekly Monthly MIS Board / bank pack Same data · 4 audiences Scheduled delivery Month-end MIS to landowner + bank · auto-emailed ON You email a report · you watch a dashboard One site entry becomes every report, no re-typing Build
Insight

Reports

One site entry becomes the DPR, weekly review and monthly MIS.

Explore module →

India-specific intelligence

Cornerstone Weather · Porur villa Plan ahead · record behind · Chennai station Monsoon season 7-day forecast 12 OctClear0 mm 13 OctClear0 mm 14 OctClear2 mm 15 OctCloud6 mm 16 OctRain24 mm 17 OctRain31 mm 18 OctRain18 mm Raft pour scheduled 12 Oct Logged weather day 19-21 Oct Rainfall87 mm / 3 days SourceIMD Chennai station Work stoppedBlockwork, plastering Captured on the day, not reconstructed later EOT evidence 3 weather days, dated and station-cited +3 days requested, beyond normal monsoon · contract decides Forecast in front, record behind A lost day becomes dated, station-cited evidence Plan the pour, defend the delay, from one module Open
Intelligence

Weather Tracking

Plan the pour around the monsoon; record weather days as evidence.

Explore module →
Cornerstone Delay risk · ECR apartments Early warning on the critical path · 6 weeks out Amber risk Handover date risk 68% likelihood of slip lowhigh Projection from live signals, not a guarantee Why: contributing signals Sanitaryware not orderedneeded in 6 wks · 0 PO raised Supplier late historyavg 3 weeks late on recent POs 2 approvals pendingbathroom layout sign-off 3 weather days loggedminor, on non-critical work Projected impact +2 weeks on handover,if no action Act now · 6 weeks of lead time Order sanitaryware today · chase 2 approvals · line up backup supplier It does not say you are late It warns you are about to be, with time to act A dated risk on the critical path, and the cause Act
Intelligence

Delay Prediction

Early warning on the finish date from the project’s own live signals.

Explore module →
Cornerstone Vastu check · Porur G+1 Checked at the plan stage Revised plan NWNE SWSE NS Entrance + Pooja Kitchen SE · Agni Master bedroom Utility Open centre Vastu score 94 out of 100 Fixed on the plan Kitchen moved to SE Pooja niche cleared Was 72 before revision. An eraser, not a demolition.
Intelligence

Vastu Compliance

Check a floor plan against Vastu directions at the design stage.

Explore module →
Cornerstone Neighbourhood · OMR site Homes on three sides · complaints managed 1 open · 2 closed Complaint register Cement dust on cars Block B · 14 Oct · dust Open Action: screens + wheel-wash added Evening noise Block A · 8 Oct · noise Closed Resolved: work stopped by 7pm Lorry blocking lane Block C · 2 Oct · parking Closed Resolved: offloading moved to gate Neighbours notified Night pour 3 blocks · 2 days ahead Date, hours and a contact number sent. Expected, not a shock. Noise, daytime 52 dB limit 55 dB (day) Within limit Notify before, log every complaint, close the loop A defensible record if an RWA or the municipality ever asks. Rules vary by state; general info.
Intelligence

Neighbourhood

Notify neighbours, log complaints and track noise and dust rules.

Explore module →

Administration

Cornerstone Team · 24 people · 9 projects Added once, assigned to their sites + Add person Team members P Priya R. priya@firm.in Site Engineer 2 sites A Arun K. Project Manager Manager 5 sites F Fatima S. Accountant Finance All R Ravi M. Store keeper Store 1 site Priya · assigned to Anna Nagar tower OMR block ECR villas Porur plot + 5 more Sees 2 of 9. Not the rest. Mobile access On · field user Files DPRs from site Add a person once, assign the sites, set mobile access Each user sees only their own projects. What they can do is set by their role.
Admin

Team & Users

Add staff once, assign them to their sites, mobile access for the field.

Explore module →
Cornerstone Roles & permissions Define a role once, everyone inherits it + New role Payments Site Eng. Accountant Proj. Mgr Owner View Raise a payment Approve a payment Edit a rate Green tick = allowed · grey cross = not allowed Segregation of duties Accountant raises, Project Manager approves. No one person pushes a payment end to end. Least privilege Each role gets the minimum it needs. Govern by role, not by person Change the Site Engineer role once, and it updates for all fifty of them.
Admin

Roles & Permissions

Define a role once; split duties so no one person acts alone.

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Cornerstone Custom fields · Project Add your own fields, no developer No code New field Field name RERA registration no. Type Text Text Number Date Dropdown Yes / No Required Project form Marina Residency Name, client, value… RERA registration no. * TN/01/2026/0421 Survey number OS 142/3B Approval status Granted Your fields, on every project Searchable · reportable Not buried in a notes box Name it, pick a type, make it required, it is on the form A real field can be searched, filtered and reported on. A note cannot. Use a few, well chosen.
Admin

Custom Fields

Add your own fields to any record, no developer needed.

Explore module →
Cornerstone Approval · PO #2041 · steel Routed by amount · 3.2 lakh Cleared Approval chain Raised Site PM Approved · mobile ! Director On leave Backup Finance Head · OK Escalated after 1 day → backup, so the steel was not held up Approval matrix · POs Up to 1 lakhPM 1 to 10 lakhPM + Director Above 10 lakh+ Owner Approve on mobile OK tap to approve The request routes itself to the right people, in order A small consumables PO stops at the PM alone. No chai bill ever reaches the owner.
Admin

Approval Workflows

Route a PO or invoice by amount; approve from mobile, no stalls.

Explore module →
05 The AI layer

AI construction management: delay prediction, weather & cost insight

Cornerstone AI turns your project data into early warnings and better decisions — the foresight that used to depend on a veteran site engineer’s gut feel. This is what the “AI” in the name actually does.

Cornerstone AI Command Center Live model Delay prediction Projected vs planned finish Tower B · 4 days behind — act now Weather-aware schedule MonTueWedThuFri Rain Thu–Fri · move slab pour to Wed Vastu planning N S NE: pooja ✓ Cost-saving insights Steel vendor 6% cheaper Switch saves ₹3.4 L this phase Cement over-ordered 12% Hold next PO till consumption

Delay prediction

Reads progress, dependencies and resource load to flag slippage days before it shows on the schedule, with the exact days at risk.

Weather-aware scheduling

Flags days unsafe for concreting so the plan adjusts around the monsoon instead of being wrecked by it.

Cost-saving insights

Surfaces a cheaper vendor or an over-ordered material before the money is committed — real rupees, not vanity metrics.

Vastu & neighbourhood

Directional planning guidance and site-context insight that Indian residential clients expect and global tools simply ignore.

06 The value

Construction ERP software ROI: where it pays for itself

A construction ERP is a profit multiplier, not a cost centre. Each module targets a specific leak that Indian builders live with daily.

Material control

Cut waste & pilferage

8–12%material cost recovered

Request → PO → GRN → inventory with receipt verification tightens the leak most builders accept as “normal”.

Quality

Reduce rework

5–8%of project cost saved

Digital checklists and hold-point approvals catch defects at the stage they happen, not after the wall is plastered.

Schedule

Faster delivery

10–15%timeline compression

AI delay prediction and weather-aware scheduling mean earlier possession and earlier milestone collections.

Finance

Clean books

0double entry

Job costing and Tally export keep budget vs actual current and reconciliation painless at month end.

Clients

More referrals

3×referral uplift

Transparent progress and billing build the trust that turns one home into the next three through word of mouth.

Compliance

Avoid penalties

₹5–50Lper incident avoided

GST-ready billing and a full audit trail keep you audit-safe instead of one inspection away from a fine.

Cost-impact ranges reflect commonly cited benchmarks for Indian residential construction and are indicative, not guaranteed. Actual savings vary by project, discipline and adoption.

07 How it compares

Procore & Buildertrend alternative for India — how Cornerstone AI compares

We respect what Procore and Buildertrend built for large commercial jobs, and what single-angle Indian apps do well. But for Indian builders who need the whole build in one intelligent system, the fit is different.

CapabilityGlobal SaaSSingle-angle appCornerstone AI
GST billing & RA bills✕ NonePartial✓ Built in
Native Tally export✕ NoneLimited✓ Vouchers, GST, TDS
Procure-to-pay (PO→GRN)✓Partial✓ End to end
Job costing (budget vs actual)✓Varies✓ Live by cost head
AI delay & cost insightLimited✕ None✓ Built in
Vastu & weather-aware✕ None✕ None✓ Included
One platform, all modulesEnterprise scope✕ One angle✓ 500+ features

Comparison reflects general market positioning of global enterprise platforms and single-feature Indian apps versus Cornerstone AI. Competitor capabilities are their stated positioning and may change — verify current features and pricing with each vendor before purchase.

08 Why teams switch

Why Indian builders switch to one connected construction ERP

“Before, our site and office ran on two different versions of the truth. Now the RA bill, the GRN and the budget all point at the same number — month-end closes in days, not weeks.”

PM
Project Manager
Residential builder, Chennai · illustrative

“The delay alert on Tower B gave us four days of lead time. We moved the slab pour before the rain and kept the milestone. That one call paid for the year.”

D
Director
Developer, multi-site · illustrative

Quotes above are illustrative scenarios that describe the intended workflow, not attributed customer statements. We will replace them with named case studies as live references are confirmed.

08 Guides

Construction ERP guides for Indian builders

Practical, no-jargon reading on choosing, costing and running construction ERP software in India, written by the iStudio Technologies team in Chennai.

Cost guide

How much does construction ERP software cost in India?

Pricing models, what drives the number, and how to budget as a builder without overpaying.

 Comparison

Construction ERP vs Tally: what Chennai builders need

Where each fits, and why the smart setup runs an ERP and Tally together rather than one or the other.

 Buyer guide

Custom vs ready-made construction ERP

The real tradeoffs on cost, speed and fit, and why the smartest answer is usually a third option.

 Buyer guide

How to choose a construction ERP software company

The eight questions to ask any vendor before you commit, and the reasoning behind each one.

 Compliance

TNRERA and CMDA compliance checklist for Chennai builders

What a Chennai builder must maintain on approvals and reporting, and how software keeps you audit-ready.

 Comparison

Top construction ERP software companies in Chennai

What separates a genuinely good ERP company from a generic vendor, and the criteria to compare them on.
09 Questions

Construction ERP software — frequently asked questions

What is Cornerstone AI?
Cornerstone AI is an intelligent construction ERP that connects projects, CRM, procurement, materials, finance and reporting on one platform, with an AI layer for delay prediction, weather-aware scheduling and cost-saving insights. It is built for how Indian builders and contractors actually work — with native GST billing, RA bills and Tally export.
Does Cornerstone AI generate RA bills and GST tax invoices?
Yes. It generates running-account (RA) bills with retention and GST tax invoices, handles TDS and WCT, and exports the matching sales vouchers, GST ledgers and TDS entries to Tally so your accounts reconcile without double entry.
What does the AI in Cornerstone AI actually do?
It reads live project data to flag delay risk before it shows on the schedule, adjust the plan around weather such as monsoon rain, surface cost-saving opportunities like a cheaper vendor or over-ordered material, and provide Vastu and neighbourhood planning insight for residential projects.
Is Cornerstone AI suitable for small builders, not just large developers?
Yes. It is built for the individual house builder and small-to-mid contractor segment that most global tools ignore, while still scaling to developers managing many sites at once. You can start with the modules you need and grow into the rest.
Can we put our own brand on Cornerstone AI?
Yes. Administration includes white-label appearance so you can set the product name and brand colour, plus role-based access and custom fields so the ERP fits your team.
Does the construction ERP support BOQ and measurement book billing?
Yes. Cornerstone AI supports BOQ-based billing and running account bills tied to measured quantities, so your RA bills, retention and GST are calculated from the bill of quantities rather than re-keyed by hand.
How much does construction ERP software cost in India?
Cornerstone AI is priced for the Indian market and sized to the number of projects and users rather than a fixed enterprise licence. A free demo is available and pricing is shared on request, so you only pay for the modules and seats you use. See the pricing page for details.
Who builds and supports Cornerstone AI?
Cornerstone AI is built and supported by iStudio Technologies, a Chennai-based software company with 17+ years of experience delivering web, mobile and ERP software for Indian businesses.
10 The complete guide

Construction ERP software in India: the complete buyer’s guide

Everything builders, civil contractors and real-estate developers should know before choosing a construction ERP — written for how construction actually works in India.

01 What is construction ERP software?

Construction ERP software is a single platform that connects the financial, operational and field-level functions of a construction business — project management, CRM, procurement, materials and inventory, job costing, finance and reporting — so builders and contractors work from one live source of data instead of scattered WhatsApp groups and Excel sheets. Where generic project-management tools stop at tasks and timelines, a true construction management software platform ties every purchase order, GRN, RA bill and inspection back to the project’s budget and cost heads.

Cornerstone AI delivers this as an all-in-one construction ERP for Indian builders and contractors, with 500+ features covering the whole build from lead to handover — plus an AI layer that most tools do not have.

In short: a construction ERP replaces 5–6 disconnected tools (Excel budgets, WhatsApp updates, paper registers, a billing app and Tally) with one connected system.

02 Why an India-first construction ERP matters

Most global platforms were built for large commercial jobs in the US and Europe. They do not handle the realities of the Indian build: GST and TDS billing, running account (RA) bills, measurement books (MB), WCT, RERA compliance, BOCW labour rules, Tally accounting and Vastu planning. An India-first construction ERP software in India comes pre-configured with Indian tax codes, contract practices and the exact billing vocabulary your site and accounts teams already use.

Cornerstone AI is built around this reality — native GST billing software for construction, RA bill software, Tally integration and India compliance are in the core product, not bolt-ons. The compliance rules it follows are set by Indian authorities such as the GST portal and the state RERA authorities, and labour obligations under the BOCW welfare board.

03 GST billing, RA bills and Tally integration

Billing is where Indian contractors lose the most time. Cornerstone AI generates GST tax invoices and running account bills with retention, CGST/SGST, TDS u/s 194C and WCT handled correctly, then exports matching sales vouchers, GST ledgers and TDS entries to Tally with zero double entry. It also supports BOQ billing, subcontractor billing and client progress billing — the full construction billing software stack in one place.

Related modules: Tally export and document management for the India compliance stack.

04 Job costing, BOQ and budget vs actual

Construction job costing software is what turns an ERP from a record-keeper into a profit tool. Cornerstone AI tracks budget vs actual by cost head in real time — material, labour, subcontract and overheads — against the BOQ, so overruns surface as they develop rather than at month end. Material-vs-PO tracking and GRN verification close the 8–12% material leak most residential builders quietly accept.

Related modules: job costing and budget & P&L.

05 AI in construction management

The “AI” in AI construction management software should mean decisions, not buzzwords. Cornerstone AI reads live project data to deliver delay prediction, weather-aware scheduling (critical during the Indian monsoon), cost-saving insights such as a cheaper verified vendor or over-ordered material, and Vastu planning guidance that Indian residential clients expect.

Related modules: delay prediction, weather tracking and analytics.

06 How to choose the right construction ERP

When comparing the best construction ERP software in India, check five things: does it handle GST, RA bills and Tally natively; does it connect procurement to job costing end to end; does it fit your scale (from a single-site house builder to a multi-tower developer); does it include a real AI layer; and does it support your team with roles, custom fields and white-label branding. Cornerstone AI is designed to answer yes to all five.

Explore the construction ERP modules, see the Procore & Buildertrend alternative comparison, or view pricing.

iS

Built by iStudio Technologies · Chennai

Cornerstone AI is developed and supported by iStudio Technologies, a Chennai software company with 17+ years building web, mobile and ERP products for Indian businesses. This page is written from hands-on experience implementing construction billing, procurement and job-costing workflows — not generic templates. About iStudio Technologies.

Updated: October 2026 · Serving builders and contractors across Chennai, Tamil Nadu and India.

Book a free construction ERP software demo

See Cornerstone AI on your own projects. Book a free, no-obligation demo and we’ll walk you through the modules above with your workflow in mind — GST billing, RA bills, Tally integration, job costing and the AI layer included.

Book a free demo See pricing

iStudio Technologies · No. 5, 1st Floor, Arcot Road, Valsaravakkam, Chennai – 600087 · +91-8807003902 · info@istudiotech.in

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