Changing your name after divorce in Punjab involves a legal process. First, you need to prepare an affidavit stating your intention to change your name, whether you wish to revert to your maiden name or adopt a new one. Then, publish the change in two local newspapers. Optionally, you can apply for a Gazette notification for formal recognition. Finally, update your name in all relevant documents like your copyright, bank records, and Aadhaar card for a seamless transition.