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Each step links to a free verification tool or to the underlying government record. Process timeline, red flags by category, and a cost breakdown below. [Open the 12-point checklist](#checklist)[India-wide 28-item checklist](/tools/land-due-diligence-checklist) ## Why due diligence matters in Tamil Nadu Land transactions in Tamil Nadu are anchored to revenue villages, registration villages, and Sub-Registrar Offices that do not always map cleanly to revenue districts. The same physical parcel can show up under different SROs depending on whether you query in revenue-village or registration-village mode. This split is the most common source of surprise findings late in a transaction — and the reason a structured 12-point check ahead of token advance saves weeks of escalation. The checklist below is ordered the way an experienced acquisition team would actually run it: cheap online verifications first, advocate-led legal review next, site survey last. Free tools at each step are linked inline. ## The 12-point Tamil Nadu land due-diligence checklist 1. 01 ### Patta verification Confirm the seller is the recorded holder of the parcel on Tamil Nadu revenue records. Patta is the village-office record of who pays land tax. **What to collect:** Latest patta extract from e-Sevai or the village administrative officer (VAO). [What is patta?](/glossary/patta) 2. 02 ### Chitta extract Cross-check the land classification — wetland (nanjai) vs dryland (punjai) — and the recorded extent against what the deed claims. **What to collect:** Chitta from e-Sevai, ideally for the most recent fasli year. [What is chitta?](/glossary/chitta) 3. 03 ### Encumbrance Certificate (EC) Surface every registered transaction against the property — mortgages, prior sales, partition deeds, court attachments — for at least the last 30 years. **What to collect:** EC from TNREGINET for the relevant SRO and registration village. [Verify EC for free](/tools/tamil-nadu/encumbrance-certificate-verification) 4. 04 ### FMB / TSLR sketch Pull the Field Measurement Book sketch (rural / natham) or Town Survey Land Record sketch (urban) and reconcile boundaries, extent, and adjoining surveys against the sale-deed schedule. **What to collect:** FMB (rural / natham) or TSLR (urban) from the TN eServices portal. [Pull FMB / TSLR for free](/tools/tamil-nadu/fmb-tslr-sketch) 5. 05 ### Survey number cross-check Verify that the survey number on the patta, chitta, EC, and FMB all match the deed schedule. A mismatch is the single most common diligence finding in Tamil Nadu. **What to collect:** All four documents above, side by side. [What is a survey number?](/glossary/survey-number) 6. 06 ### Guideline value lookup Establish the government-notified minimum value for the parcel. Used for stamp-duty computation and as a sanity check against the negotiated sale price. **What to collect:** Guideline rate for the SRO + registration village + street/survey from TNREGINET. [Look up guideline value](/tools/tamil-nadu-guideline-value) 7. 07 ### RERA verification (where applicable) Required when buying an apartment, plot, or villa from a promoter, or when the deal is brokered by a registered real-estate agent. Confirm the project, building, layout, or agent is currently registered with TN RERA. **What to collect:** Project / agent registration certificate from rera.tn.gov.in. [Open the official TN RERA portal](https://rera.tn.gov.in/) 8. 08 ### Building plan approval (CMDA / DTCP) For built-up properties: confirm the building plan was approved by the right authority. CMDA covers Chennai Metropolitan Area; DTCP covers the rest of Tamil Nadu. **What to collect:** Approved plan from CMDA / DTCP with planning permit number; physical copy + portal lookup. [DTCP approval explained](/glossary/dtcp-approval) 9. 09 ### Khata / municipal records For urban properties: confirm the property tax record (assessment number) reflects the seller and matches the current address and extent. **What to collect:** Property tax receipt + assessment record from the local corporation / municipality / town panchayat. 10. 10 ### Title chain — 30 years Trace ownership back at least 30 years through registered deeds. Gaps in the chain — missing partition deeds, undocumented inheritance, family settlement — are the most expensive diligence failures. **What to collect:** All parent deeds + 30-year EC + family-tree affidavit where inheritance is involved. [What is a mother deed?](/glossary/mother-deed) 11. 11 ### Litigation search Search civil-court records for pending suits involving the property, the seller, or any prior owner in the 30-year chain. Includes both district court and high-court filings. **What to collect:** Court-record search by advocate; ideally cross-checked against eCourts portal. 12. 12 ### Physical site survey Visit the parcel with the FMB sketch in hand. Verify boundaries, adjacent occupants, access road, and any encroachment that does not appear on paper. **What to collect:** Site visit report + photographs + GPS coordinates + survey-stone check. ## Process timeline — clean transaction | Stage | Duration | Owner | Output | | --------------------------------- | -------------------- | ----------------- | ------------------------------------------------------------------------------------ | | 1\. Document collection | 3–7 days | Buyer + seller | All seller-side documents in hand (patta, chitta, sale deeds, ID). | | 2\. Online verifications | 1–2 days | Buyer or operator | EC pulled, FMB sketch pulled, guideline value pulled, RERA verified (if applicable). | | 3\. Title opinion | 5–10 days | Advocate | Written title opinion identifying any gaps, encumbrances, or risks. | | 4\. Site survey | 1 day (excl. travel) | Buyer + surveyor | Site visit report with boundary verification + photographs. | | 5\. Litigation & municipal checks | 3–7 days | Advocate + buyer | Court-record search complete; municipal / khata records confirmed. | | 6\. Go / no-go | 1 day | Buyer | Decision to proceed to token / sale-deed registration, or walk away. | Complex deals — joint-registrar SROs, partitioned parcels, pre-2000 chain — routinely stretch to 30–45 days. The timeline above assumes a cooperative seller and clean documents. ## What to escalate before token advance ### Legal - Title gap in the 30-year chain (missing partition / inheritance documents). - Active mortgage on the EC that has not been released by the bank. - Pending civil suit or criminal complaint involving the seller or property. - Power-of-attorney sale where the original POA cannot be produced. ### Physical - FMB boundaries do not match the visible boundaries on site. - Adjoining surveys overlap into the parcel (encroachment). - No legal road access — the parcel is landlocked without an easement. - Survey stones missing or inconsistent with the sketch. ### Financial - Negotiated price materially above guideline value with no obvious premium driver. - Property tax dues outstanding or assessment record stale. - Stamp-duty arrears from a prior unregistered transaction. ### Governmental - Building plan does not match the constructed structure (deviation or unapproved floors). - Land-use conversion from agricultural to residential not formally recorded. - RERA project registration has lapsed or has never been issued for a promoter sale. - Patta and chitta show different extents, or the patta has not been mutated after a partition. ## Which approach fits your deal? | Approach | Time | Cost | Best for | Risk profile | | --------------------------------- | -------------------------------- | --------------------------------------------------------------- | ------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------- | | DIY | 15–30 days | ₹0 government fees + your time | One-off personal purchase where you have weeks to spend on paperwork. | High. Most first-time buyers miss the title-chain step or the FMB / patta reconciliation. | | Professional (advocate) | 10–20 days | ₹15,000–₹50,000 typical fee range | Single high-value deal where a written title opinion is required by the lender or partner. | Low on legal side; depends on the advocate also walking the parcel. | | Software-assisted (e.g. Proquiro) | 5–10 days for the bulk of checks | Monthly subscription — fixed per-deal cost regardless of volume | Acquisition teams running multiple deals concurrently; brokers building a pipeline. | Low on data-collection side; advocate review still required for the final title opinion. | ## What you actually spend in Tamil Nadu | Item | Typical range (2026) | | -------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | EC retrieval (TNREGINET) | ₹100–₹150 per certificate | | FMB / TSLR sketch | Free via TN eServices | | Guideline value lookup | Free via TNREGINET | | Patta / chitta extract (e-Sevai) | ₹100 per document | | Title-opinion advocate fee | ₹15,000–₹50,000 (parcel-size dependent) | | Surveyor site visit | ₹2,000–₹10,000 (distance + parcel-size dependent) | | Litigation search (advocate) | ₹3,000–₹10,000 | | Stamp duty + registration fee | 9% total — 5% stamp duty + 2% transfer duty + 2% registration fee on the applicable market value under TNREGINET's valuation rules; TNREGINET currently groups the first two components as 7% under ‘Stamp Duty’; instrument-specific rates and concessions vary | Stamp duty and registration fee are statutory and apply at the registration stage, not during diligence — included here so buyers see the full closing cost in one place. ## Tamil Nadu verification stack - [Tamil Nadu title verificationThe 5-step title check — title chain, EC, Patta/Chitta, FMB/TSLR, and litigation search — with the official Tamil Nadu source for each.](/tools/tamil-nadu/title-verification) - [Encumbrance Certificate verificationPull and verify ECs from TNREGINET for any SRO + registration village in Tamil Nadu.](/tools/tamil-nadu/encumbrance-certificate-verification) - [View Patta, Chitta, or TSLRSearch live rural, Natham, or urban revenue extracts from Tamil Nadu land records.](/tools/tamil-nadu/patta-chitta) - [View A-Register onlineCheck a rural village record’s survey, subdivision, area, and classification.](/states/tamil-nadu/a-register) - [Tamil Nadu FMB / TSLR sketchFetch the official survey-level boundary sketch — rural FMB, Natham FMB, or urban TSLR.](/tools/tamil-nadu/fmb-tslr-sketch) - [Tamil Nadu guideline valueLook up the government-notified minimum value for any street or survey across Tamil Nadu's SROs.](/tools/tamil-nadu-guideline-value) - [Tamil Nadu title verificationFollow the core title checks and use the official TN RERA portal where applicable.](/tools/tamil-nadu/title-verification) - [Tamil Nadu SRO directoryAll Tamil Nadu Sub-Registrar Offices organised by zone — find the SRO with jurisdiction over your village.](/sro-directory/tamil-nadu) - [India-wide due-diligence guideLong-form national companion to this TN-specific checklist — covers states beyond Tamil Nadu.](/blog/land-due-diligence-checklist-india) ## Running multiple TN deals? Proquiro runs all 12 checks automatically across every deal in your pipeline — EC, FMB, guideline value, RERA, patta, chitta, title chain — and flags red flags before you commit a token. Built for acquisition teams handling 5–50 active Tamil Nadu deals at a time. [Try Proquiro](https://app.proquiro.com/users/sign%5Fup)[See document verification](/features/document-verification) Common Questions ## Tamil Nadu land due-diligence FAQ How long does land due diligence take in Tamil Nadu? A clean transaction with cooperative seller-side documents typically completes in 10–15 working days. Complex deals — joint-registrar SROs, partitioned parcels, pre-2000 title chains, or inherited property — routinely stretch to 30–45 days. The longest individual step is usually the advocate title opinion (5–10 days) and the litigation search (3–7 days). Online verifications (EC, FMB, guideline value, RERA) collectively take under a day when run in parallel. How much does land due diligence cost in Tamil Nadu? Government fees alone are minimal — under ₹500 for EC + patta + chitta extracts. The bulk of the cost is professional time. A full DIY pass costs only your time. A standard advocate-led title opinion runs ₹15,000–₹50,000 depending on parcel value and complexity. Acquisition teams running multiple deals typically use software (e.g. Proquiro) to compress per-deal cost. Who pays for the due-diligence costs — buyer or seller? By Tamil Nadu convention the buyer pays. The seller produces the source documents (patta, chitta, sale deeds, tax receipts), but verification, advocate fees, surveyor costs, and online retrieval charges are buyer-side expenses. In broker-led transactions some brokerages bundle initial verifications into their commission, but the buyer still pays directly for the title opinion and any escalations. What if the Encumbrance Certificate shows gaps? EC gaps before the year 2000 are common for parcels under joint registrars or in villages that were migrated late to the online system. The TNREGINET portal labels these as "data not available" rather than treating them as a clean record. For genuine gaps, walk in to the relevant Sub-Registrar Office with the survey number — the back-office can pull the manual index. Allow 2–7 working days. Treat any post-2000 gap as a red flag and escalate to an advocate. Can land due diligence be done remotely in Tamil Nadu? Most of it, yes. EC, FMB sketches, guideline value, RERA verification, and patta / chitta extracts are all available through government portals (TNREGINET, TN eServices, e-Sevai, rera.tn.gov.in). The physical site survey and the advocate-led litigation search cannot be remoted away — boundaries on paper are not the same as boundaries on the ground, and court-record searches are still locally indexed in many districts. What if the seller resists producing documents? Treat unprompted resistance as a red flag. Cooperative sellers produce patta, chitta, latest tax receipt, original sale deed, and ID proofs within a week of a serious offer. If you have already paid a token advance and the seller stalls, your written sale agreement should include a documentation timeline and a forfeit clause. Without an agreement, your token is at risk — never advance a token before at least a clean EC and patta in the seller’s name. What is the role of an advocate in TN land due diligence? The advocate produces the title opinion — a written document confirming whether the seller has clear and marketable title, listing any encumbrances and the risk level of proceeding. A good TN property advocate also runs the litigation search and reviews the title chain (30 years of parent deeds). Their opinion is what banks and partners rely on; it is not optional for any deal above a few lakhs. When should I walk away from a Tamil Nadu land deal? Walk away when any of the following hold: the title chain has an unresolvable gap; the seller cannot produce the original sale deed; the FMB boundaries materially disagree with the site or deed; an active mortgage is unreleased; a civil suit is pending; or the parcel sits on government poramboke land. Walk away anyway when the seller refuses to produce a document and cannot give a reason. Diligence is fundamentally about pattern matching — buyers who walk away on the first unexplained refusal save themselves the cost of a fully developed mistake. Last verified 14 August 2026 ## The land acquisition software your team needs to close with confidence. Start with Solo from ₹639/mo · Cancel anytime. [Request a Demo](/contact/sales)[Start Solo — ₹639/mo](https://app.proquiro.com/users/sign%5Fup?plan=solo)