Patta / revenue extract
Use as current revenue / survey-context evidence.
Property Buyer's Handbook · Patta & EC
Patta sits in the land / revenue record system. An Encumbrance Certificate sits in the registration-record system. They answer different questions and should be reconciled with deeds, survey records, certified copies, legal-access evidence, planning records and the buyer’s lawyer’s review.
Direct answer
A buyer should use both, but should not ask either document to prove title, legal access, measured boundary, planning approval or physical condition on its own.
Revenue / land-record system.
Registration Department record search / certificate.
Typically tied to current revenue / survey identifiers such as district, taluk, village, survey and subdivision, or urban TSLR identifiers.
Online EC search is driven by property / village / survey and other registration-search parameters for the requested period.
Who / what does the current revenue record show for the parcel, and how does the survey / subdivision identity reconcile with the property file?
What registered transactions / encumbrance entries are returned for the searched property parameters and period?
Legal title, legal access, complete transaction history, current measured boundary, planning / building approval or physical condition.
Title as a complete legal conclusion, unregistered / non-indexed matters, measured boundary, revenue identity, planning / building approval or physical condition.
Lawyer and survey / revenue professional as required.
Buyer’s lawyer, including whether the search parameters / period and supporting certified documents are sufficient for the legal review.
Current official routes
Government land-record services currently provide Patta / Chitta, FMB, TSLR and A-Register routes. Tamil Nadu e-Sevai currently lists Inspector General of Registration services for EC issuance, certified copies and downloads. The TNREGINET EC manual shows the online application using village / survey and other property-search parameters.
Reconcile, do not merely collect
Evidence hierarchy
Use as current revenue / survey-context evidence.
Use to reconcile survey identity and recorded geometry; obtain qualified field measurement when the boundary itself must be established.
Use as a registration-record search output for the selected property parameters and period.
Use the underlying registered document where the lawyer needs the actual instrument rather than only an EC entry.
Use the full property file and applicable law to reach the legal conclusion; do not substitute a single portal record.
Two records, two evidence streams
Reconcile the property identity across revenue records, registration records, deeds, survey material and the physical property before treating the file as ready.
See Due Diligence Coordination