Pan surrender

How can it be inadvertently issues?

Due to lack of knowledge and wrong advice from other, old pan card was misplaced and then he has applied another pan.
so request you to please advice us.

Go to nsdl tin facilitation centre nearby and surrender one of them

Fill a form in NSDL through online "request form" then take that form along with documents to their office after verification they gives you a acknowledgement slip and you have to send that with other prescribed document as per them to the main NSDL OFFICE within 15 days after that you have to go to your assessment officer office of your locality with a request application for surrender along with all the details and a affidavit copy for cancellation / surrender of old pan

Thank you all