As per ITD guidelines,'Request for New PAN Card or/and Changes or Correction in PAN Data' application is presently to be used only for update/correction in PAN database. For procedure to link Aadhaar with PAN, please click here.
As per provisions of Section 272B of the Income Tax Act., 1961, a penalty of ₹ 10,000 can be levied on possession of more than one PAN.