how to link email id to pan card

The official way to link your email ID to your PAN card is through the Income Tax e-Filing portal. Registered users can log in, navigate to the 'My Profile' or 'Update Profile' section, and modify their contact details, including their email ID. For new e-PAN applications or updates based on Aadhaar, the system allows you to validate or link your email ID using an OTP sent to the mobile number registered with your Aadhaar. Alternatively, you can submit an online 'Application for Change/Correction in PAN Data' via the official PAN service providers like Protean.