Pan amendement query

Shreya Aggarwal (Student) (125 Points)

06 November 2011  

I have filed an application for change in PAN data three months back. In reply, the NSDL have sent letters regarding sending of necessary documents. I have send these documents twice but the status of the application is still showing

"Your application for 'New PAN Card or/and Changes or Correction in PAN Data' is under process at Income Tax Department” 

from past 45 days.

How much time is taken by the department in chanding the PAN data. There is change in the Last Name of the assessee.