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Tamil Nadu’s land record system consists of four core documents that every developer must understand: Patta and Chitta, FMB (Field Measurement Book), and EC (Encumbrance Certificate). Together, they answer the three fundamental questions of any land deal — who owns it, what is it, and is it encumbered?
This guide explains each document, how they relate to each other, and how to verify them efficiently for professional land acquisition workflows.
The 4 documents at a glance
| Document | What it tells you | Issued by | Available online? |
|---|---|---|---|
| Patta | Legal ownership (name, survey number, area) | Revenue Department | Yes |
| Chitta | Land classification (wet, dry, manavari) | Village Administrative Officer | Yes (merged with Patta) |
| FMB | Physical boundaries and measurements | Survey Department | Partial |
| EC | Transaction history and encumbrances | Sub-Registrar Office | Yes |
Understanding Patta
Patta is the primary ownership document. It contains the landowner’s name, survey number, subdivision number, total area, and the nature of the land. When someone says “check the patta,” they’re asking you to verify who the government recognizes as the legal owner.
Key fields in a Patta record:
- Owner name(s) and share details
- Survey number and subdivision
- Total extent in hectares and ares
- Classification (nanjai, punjai, manavari, tharisu)
- Taluk, village, and district
What developers should watch for
Multiple names on a single patta indicate joint ownership. This means ALL owners must consent to the sale. Missing even one co-owner’s signature can invalidate the entire transaction.
Patta transfers don’t happen automatically after a sale deed is registered. There can be a lag. Always cross-reference the patta with the latest registered sale deed.
Understanding Chitta
Chitta was historically a separate document maintained by the Village Administrative Officer showing land classification and usage history. Since 2015, Tamil Nadu merged Patta and Chitta into a single digital document.
The classification matters because it determines:
- Whether agricultural land conversion is needed
- Stamp duty rates
- Development permissions
- Water rights (nanjai land has irrigation rights)
Understanding FMB (Field Measurement Book)
The FMB is a sketch maintained by the Survey Department showing the physical boundaries, dimensions, and survey markers for each parcel. It’s the closest thing to a “map” for a specific piece of land.
Why FMB matters for developers:
- Boundary disputes are the #1 field issue in land acquisition
- FMB helps verify that the seller’s claimed area matches the survey record
- Adjacent parcel owners and boundaries are visible
- Road access and pathway details are shown
FMB verification process
- Obtain the FMB sketch from the e-services portal or Taluk Survey Office
- Visit the site with a surveyor and GPS equipment
- Locate the survey stones (boundary markers)
- Compare ground measurements with FMB dimensions
- Document any discrepancies
Understanding EC (Encumbrance Certificate)
The Encumbrance Certificate is arguably the most important document for a buyer. It’s a record of all registered transactions on a property, issued by the Sub-Registrar Office that has jurisdiction over the village.
An EC reveals:
- Sale deeds (ownership transfers)
- Mortgages and hypothecation
- Gift deeds
- Court attachments and lis pendens
- Release deeds
- Lease agreements
How far back should an EC search go?
The standard recommendation is 13 years (the limitation period for most property claims under Indian law). However, for high-value acquisitions, professional teams typically pull 30-year ECs.
Tamil Nadu’s cross-SRO EC verification system now allows checking transactions across multiple Sub-Registrar Offices, which catches cases where the same property was registered in different jurisdictions.
How the 4 documents connect
Think of these documents as layers:
- Patta/Chitta tells you WHO owns WHAT TYPE of land
- FMB tells you WHERE exactly it is and its BOUNDARIES
- EC tells you the HISTORY of transactions and any CLAIMS
A clean land deal requires all three layers to align. The patta owner should match the latest EC entry. The FMB area should match the patta extent. And the EC should show no active encumbrances.
Online verification in Tamil Nadu
Tamil Nadu has one of the most digitized land record systems in India. Here’s where to access each document:
- Patta/Chitta: eservices.tn.gov.in → Land Records
- FMB: Available through the same portal (limited coverage)
- EC: tnreginet.gov.in → Encumbrance Certificate
- Patta Transfer History: Launched March 2026, shows full transfer chain
For teams processing multiple verifications daily, manual portal lookups become a bottleneck. Systematic tools that can pull and cross-reference these documents save significant time.
For a unified approach to managing your entire pipeline, explore land acquisition management software for Indian real estate teams.