If you are buying any individual house or Land, you have to look for the following Records
Sale Agreement:- If you are entering in to agreement, the agreement should be registered in Sub Registrar office. From Dec 2012, per Tamil Nadu Government Order, only registered agreement will be valid.
Sale Deed & Parent Document:- You have to verify previous Sale Deeds. Also confirm the property is Ancestral Property or Self Acquired property. If it is Ancestral Property, please double check, the settlement has made properly and all the legal successors have signed in the settlement deed etc… Parent Document is List of all previous original sale deed.
Embracement Certificate:- Apply EC for at least 30 years and confirm the Sale entry with Survey Numbers, double check for the same survey number, various sale deed has been registered.
Revenue Records:- Kindly ensure all the revenue records were in the sellers name. i.e., Patta, Chitta and etc..
If the property is self acquired no issues only the seller can sign, if it is Ancestral Property all the legal successors have to sign without fail.