E-Filing Center: Question

Registered users such as Depository participant, Financial Institution, and Bank who are liable to File AIR are provided the facility to verify the PAN of their clients/customers.

The facility is provided by NSDL and registration is must.

The annual fee charged is about Rs.60000/-(Yes Sixty Thousand )

So only Banks and big Financial Institutions opt for it. You can learn more about this if you go for Audit of Banks Regional processing Center where account opening form, etc. are audited.