UIDAI is mandated to issue an easily verifiable 12 digit random number as Unique Identity - Aadhaar to all Residents of India. Link Aadhaar User Manual 1. Overview For new applicants of PAN card, the Aadhaar PAN linking is done automatically during the application stage. For existing PAN holders, who were allotted PAN on or before 01-07-2017 it is mandatory to link PAN with Aadhaar. The Link Aadhaar service is available to individual taxpayers (both registered and unregistered on e-Filing Portal). If you do not link your PAN with the Aadhaar till 30 th June 2023, your PAN will become inoperative. However, people who ... The PAN and Aadhaar link is the process of connecting your PAN with your Aadhaar number to verify your identity and prevent duplicate PANs. All taxpayers in India must keep their PAN Aadhaar link active. Aadhaar-Pan Link Process 2025: Your PAN card must be linked to your Aadhaar number before December 31 as per a mandate by the CBDT.