PoA in case of name change

Dear Client,
A deed of rectification is required to rectify the error or omission in the original deed with the prior permission of the jurisdictional Registrar/Sub-Registrar who registered the original deed. Both parties to the deed of sale(Seller & Buyer) must consent to the revisions requested and attend at the sub-registrar's office for the registration rectification deed under Section 17 of the Indian Registration Act, 1908, and is a perfectly legal way to correct errors or omissions in a legal document. In the absence of Principal, a Power of Attorney is required to be executed and registered by the principal in favour to a person appointing him to execute a document on behalf of him at the time of registration of a document before the registration authority. In the Power of Attorney you should mention your updated name which is rectified following the procedure, i.e, swearing an affidavit, publishing in the newspaper and gazette notification. If you are physically available for registration of deed of rectification before the authority, then there is not need of execution of a Power of Attorney.

Dear Sir,
However, a PoA may be needed only if:

You are not available in person to execute documents for name rectification (e.g., you're living abroad or in another city).

You want someone else (like a family member or lawyer) to deal with government offices, Sub-Registrar, or revenue authorities on your behalf.

The property is involved in any transaction (sale, mutation, conversion, etc.), and you want another person to represent you using your corrected name.

Otherwise, if you are personally handling the rectification and all documents (affidavit, newspaper ad, gazette notification) are available, a PoA is not mandatory.