how to sign in pan card

How to sign your PAN card depends on its purpose. If you received a physical PAN card that has a blank signature strip (common after an Aadhaar e-KYC application), you must manually sign it using a permanent marker to make it officially valid. For the online application process (new or correction), you can use the Aadhaar OTP-based eSign service on the official Protean (formerly NSDL) or UTITSL portals. This provides a legally recognized digital signature on your application form, enabling a paperless submission.