How can I correct my father's name on my documents?

You will need to follow these steps:

1. Draft an affidavit stating your intention to change your name. The affidavit should include your current name, your new name, and the reason for the change. It should also be signed and attested by a notary public.
2. Publish a notice of your name change in a local newspaper and in the Gazette of India.
3. Apply for a new Aadhaar card with your new name.
4. Apply for a new passport with your new name.
5. Update your name in all other relevant documents, such as your bank account, driving license, and PAN card.