Start with the title chain
Collect the parent documents — the earlier sale deeds that show how the land passed to the current seller — for at least 30 years where available. Your lawyer reads this chain for gaps.
Patta and chitta
The patta is the revenue record of ownership. Check that the name and survey number match the seller and the sale deed. Tamil Nadu's land records can be viewed online through the state e-services portal.
Encumbrance certificate
The EC lists registered transactions on the property, such as mortgages and sales, over the period you request. Ask for a long period and read it for any loan not yet closed.
Approval and layout plan
Get a copy of the DTCP or CMDA approval and the approved layout. Your plot number, dimensions and road widths should match.
Guideline value and charges
Stamp duty and registration fees are charged on the higher of the guideline value and the sale price. Rates change, so confirm current charges with the sub-registrar office before you plan your budget.
This guide is general information, not legal or financial advice. Confirm current rules with a lawyer, your bank or the relevant authority.