Procure-to-pay for ERP
Requisition, approval, purchase order, goods receipt and supplier invoice, posted live into the ERP. Three-way match and GST and TDS checks run before anything is posted.
Consulting firm · Software built with AI
We build the systems mid‑size companies run on.
Lighthouse Strategy Partners works inside a business, finds what slows it down, and builds the system that fixes it. AI does much of the building, and in several of these systems it does part of the work.
- 18systems described on this page
- ~1 millionjournal lines in the ERP mirror we maintain
- 650+questions in the hiring assessment bank
- 15 stagestracked across a four-department factory
Our product
Lighthouse Books
Bookkeeping and tax compliance for small Indian firms and LLPs, in one place, with AI reading the paperwork.
- GST invoices, credit notes and receipts, with entries posted to the ledger as they happen.
- Expenses captured from a photo of the bill: AI reads the vendor, date, tax and total, and the entry is booked.
- Bank statements matched to the entries they settle.
- GST return summaries, input credit, and a lock on each period once it is filed.
- TDS deducted and deposited, advance tax, and the year-end income tax provision.
- Partner accounts, an asset register with depreciation, and a vault for challans and certificates.
Status
We run our own firm's books on it. We are preparing it for other small firms.
Receivables₹4,72,000
GST payable₹72,000
TDS to deposit₹18,500
Bank₹9,31,240
Deposit TDS · deducted in May7 Jun 3 days
GSTR-1 for May11 Jun 7 days
GSTR-3B for AprilFiled Locked
Bill photo readOffice supplies vendor
Taxable ₹2,400 · GST ₹432Total ₹2,832
Entry bookedPosted
Track record
Systems we've built and run in production
Built for clients in construction, interior fit-out, manufacturing and managed offices. Client names are withheld, and the screens shown are redrawn with sample data.
01
Finance and ERP
ERP data warehouse
A mirror of the ERP holding about a million journal lines, with a query tool and a schema wiki that understands the terms people actually use.
Read-only finance assistant
A finance head asks questions in plain English and AI writes the query. The infrastructure allows reading only, so nothing can be changed.
✓Requisition
✓Approval
✓Order
✓Receipt
5Invoice
Order, receipt and invoice quantitiesMatch
GST rate against item master18%
TDS section appliedContractor
Invoice scan against entered amountsReview
Nothing posts without a person's click.Post to ERP
02
Factory, site and warehouse
Edge attendance
Face recognition running on a small computer at the factory gate, feeding a live attendance dashboard. Three cameras and a directory of more than 300 workers.
Production tracker
A 15-stage manufacturing pipeline across four departments, replacing a shared spreadsheet.
Warehouse ledger
Stock in, stock out and computed balances across two warehouses, with bulk import and export.
3D scan comparison
Two scans of the same building side by side with synced navigation. Our alignment method cut mean error from 1.66 m to 0.97 m.
08:02 · ID 1042In
08:02 · ID 0317In
08:01 · UnrecognisedEnrol
03
People
Hiring assessments
More than 650 questions in 13 categories, essays graded by AI, psychometric reports and webcam proctoring. White-labelled for two brands.
Recruiting pipeline
Job descriptions parsed and CVs scored with the evidence cited. First-round voice interviews in Hindi and English are being added.
Frontline learning app
Video lessons and quizzes on workers' own phones with real completion tracking. It replaced a per-seat vendor.
A supplier delivers 10% short on three orders in a row. What do you check first?
- The supplier's rating
- Goods receipts against the purchase orders
- The payment terms
- The site's storage space
Face in frameYes
Second personNone
Phone detectedNone
Left the tab1 time
04
Internal tools
Project management
Bills of quantities, timelines, procurement and billing for fit-out projects in one place, connected to the ERP.
Team chat
Self-hosted, white-labelled messaging with its own mobile app, replacing consumer chat apps for work.
Meeting transcription
Recordings turned into transcripts with speakers separated and a summary, on hardware the client owns.
Visitor management
Pre-registration, kiosk check-in and host notifications for managed-office sites.
File-server watch
Flags unusual file activity, such as bulk reads or mass deletes, against each user's own normal pattern.
05
Consulting, delivered as software
Workplace discovery
A custom staff survey, global benchmarks and a concept presentation generated as code, so each recommendation carries the number behind it.
Archive to item master
An 81 GB archive of past projects turned into a clean item master: 344 projects and 1,361 workbooks organised and indexed.
Method
How we build with AI
A small team can maintain this many systems because of how the work is set up.
AI coding agents write most of the code
Every repository carries its own instructions and working memory, so a session picks up where the last one stopped. People decide what to build and review what ships.
AI works inside the product
It reads bill photos into bookkeeping entries, answers finance questions over ERP data, and turns course material into lesson packages.
Guardrails live in the infrastructure
Query paths that can only read. A person's click before any document posts to an ERP. Periods that lock once a return is filed. None of it depends on a prompt being obeyed.
The right model for each job
On-device vision for attendance, speech models for voice, and language models for reasoning, code and documents.
We run our own firm this way
AI reads our challans and bank statements, proposes the entries and reconciles the ledger. A partner approves.
The firm
A consulting firm that ships software
We take on operating roles inside mid-size businesses. That means we see the work as it is actually done, at the gate, on the shop floor and in the finance team, before we build anything for it.
What we build stays in use. Most of the systems on this page are still run and maintained by us, not handed over and left.
EntityLighthouse Strategy Partners LLP
Based inGurugram, India
Founded2026
WorkManagement consulting · Software
Contact
hello@lighthousestrategy.in