Fill form of Request for New PAN Card Or/ And Changes Or Correction in PAN Data (PAN Change Request Form).
Online link for form:
https://tin.tin.nsdl.com/pan/correction.html
You have to mention the PAN which you are using currently on top of the application form. All other PAN/s inadvertently allotted to you should be mentioned at item no. 10 and the corresponding PAN card(s) should be submitted for cancellation along with the form.
17 December 2012
Obtaining/possessing more than one PAN is against the law and may attract a penalty upto Rs.10,000. Therefore it is advisable not to obtain/possess more than one PAN. If you have more than one PAN, you should surrender the unused PAN.