In INDIA, Aadhar is now being populated as a sole identification card for every citizen and thus the government has been introducing measures to have different government ID proofs to be linked with PAN. The linking of PAN (Permanent Account Number) with Aadhaar (Unique Identification Number) was mandatory for Indian residents. One should also view
source https://99-networks.com/pan-aadhaar-link-status-check-online/