Buying a resale flat in Chennai: the title checks, from encumbrance certificate and patta to association dues

Rules and rates as of 12 October 2026.

A new flat comes with a developer, a RERA registration and a stack of approvals. A resale flat comes with one seller and whatever paperwork that seller happens to have kept. In Chennai the checks are not exotic, and most can be started from home on Tamil Nadu government portals. This guide walks through what to collect, where each record lives, and what to compare once you have it. It explains the process; the title opinion itself should come from an advocate who practises in property matters.

Why the paper trail matters more on a resale

A flat is not just the four walls. Under section 3(2) of the Tamil Nadu Apartment Ownership Act, 2022 (Tamil Nadu Act 44 of 2022), an apartment together with its undivided interest in the common areas is a single heritable and transferable immovable property, and section 8(1) says that undivided share cannot be separated from the apartment: it is deemed to be conveyed or encumbered along with it. So when you check title, you are checking two things at once, the flat and the land share (UDS) beneath it.

The sale itself must be registered. Section 17(1)(b) of the Registration Act, 1908 makes registration compulsory for non-testamentary instruments that create, assign or extinguish any right, title or interest in immovable property worth ₹100 or more. Section 57 of the same Act is the reason you can check a stranger's property at all: on payment of the fees, Book 1 and its indexes are open to inspection by any person, and copies of entries must be given to anyone who applies.

The documents, and what to look for in each

1. The chain of title, starting with the mother deed

"Mother deed" or "parent document" is the trade term for the earlier deeds that show how the land, and later the flat, passed from owner to owner. For a resale flat, the chain usually runs: the landowner's title deed, the joint development or sale agreement with the builder, the builder's sale deed for the UDS (and any construction agreement), and then each resale up to the present seller. Ask for registered copies of every link. Where the seller has only photocopies, certified copies can be applied for on TNREGINET under "Certified Copy".

Read each deed for three things: that the seller in one deed is the buyer in the previous one, that the survey number and UDS extent stay consistent, and that nothing is executed under an unregistered power of attorney.

2. Encumbrance certificate (EC) for a long period

The EC is an extract from the sub-registrar's records listing registered transactions on a property for a period you choose: sales, mortgages, releases, settlements. TNREGINET offers both an online EC application and a search-and-view option. Lawyers and home-loan lenders commonly ask for an EC covering about 30 years. That is professional practice rather than a statutory figure, and a lender may ask for a different period, so confirm with yours.

What to compare: every deed in your chain should appear in the EC; any mortgage registered on the flat should be followed by a registered release or a bank closure letter; and no transaction should appear that the seller has not explained. Note the EC's limit: it lists only registered documents, so an unregistered agreement or a court attachment may not show.

3. Patta and chitta for the land

Patta and chitta are revenue records of who holds the land. The Tamil Nadu Revenue Department's e-services portal (eservices.tn.gov.in) lets you view patta/chitta details and land details as per the A-register. Check that the survey number in the deeds matches the revenue record, and that the holder named is consistent with the chain of title. Whether an individual flat owner holds a separate patta for the UDS varies by building, so ask the seller what exists and get the advocate's view on any gap.

4. Property tax receipts

Greater Chennai Corporation collects property tax every half-year. Its online payment page asks for the zone number, division code and bill number, which you can take from the seller's latest bill. Ask for the receipts for recent half-years and check that the bill is in the seller's name. The corporation's site also has a separate "Mutation Fee (Name Transfer)" link, which is how the bill moves to your name after the sale. For the current half-year, GCC's site advertises a 5% incentive for payment before 31 October 2026, a reminder to check that the seller has paid the latest instalment.

5. Association NOC and a dues statement

The 2022 Act does not, on its face, give an apartment owners' association a power to refuse a sale or demand a no-objection certificate. What it does do matters more to a buyer. Section 19 makes assessed common expenses a charge on the apartment. Section 22 makes a purchaser jointly and severally liable with the seller for all unpaid assessments up to the date of sale, and lets the purchaser obtain a statement of dues from the association, which limits exposure to the amount stated. So whatever the association calls its letter, ask for a written dues statement before you pay.

Worked example: the registration fee on an ₹85 lakh resale flat

The registration fee for sale deeds in Tamil Nadu is set in the Table of Fees under the Registration Act. A government notification of 30 March 2023 (G.O. Ms. No. 34, Commercial Taxes and Registration Department) cut it, from 1 April 2023, from ₹4 to ₹2 for every ₹100 or part thereof.

Formula: registration fee = (value ÷ 100, rounding any part up) × ₹2

For a deed value of ₹85,00,000: 85,00,000 ÷ 100 = 85,000 units of ₹100; 85,000 × ₹2 = ₹1,70,000.

Deed value	Fee before 1 April 2023 (₹4 per ₹100)	Fee from 1 April 2023 (₹2 per ₹100)
₹85,00,000	₹3,40,000	₹1,70,000

Two cautions. First, this is the registration fee only; stamp duty is charged separately, and this guide does not quote a rate because we could not confirm it from an official schedule at the time of writing. TNREGINET has a tool to verify your stamp duty calculation. Second, check the government guideline value for the street or survey number on TNREGINET; if it is higher than your agreed price, ask your advocate which value the duty and fee will be computed on.

The same arithmetic is useful on dues. If a seller is 14 months behind on maintenance of ₹4,200 a month, that is 14 × ₹4,200 = ₹58,800 for which section 22 makes the buyer jointly liable, which is why the dues statement belongs on the list.

Common gaps on Chennai resales

• A missing link in the chain. A deed referred to in a later deed but not produced. Get a certified copy, or ask why it cannot be traced.
• An old mortgage with no release. The EC shows a loan but no registered release; ask the seller for the bank's closure letter and the release deed.
• Survey number or UDS mismatch. Deeds and revenue records describe different extents.
• Tax bill in an earlier owner's name. The mutation was never done; it can be fixed, but ask before the sale, not after.
• Undisclosed association dues. Covered by the section 22 statement above.

None of this replaces a written title opinion from an advocate, and a lender will in any case get its own. The point of doing the groundwork yourself is to spot questions early, while you still have time to ask them.