Permanent account number (PAN) is a permanent number and does not change during lifetime of the PAN holder. Changing the address or city, though, may change the Assessing officer. Such changes must, therefore, be intimated to the nearest IT PAN service center or TIN facilitation center for required correction in the PAN Databases of the Income Tax department. These requests will have to be made in a form for 'Request for new PAN Card or/ and changes in PAN Data'.
PAN application, PAN application in case of migration, Income tax Explained about the change of PAN jurisdiction in case of migration of the PAN holder.