Visit the official National Voters’ Services Portal (NVSP) or your country’s election commission website
Log in or create an account if required
Select the option for voter details correction or updating contact information
Enter your Voter ID details
Add your mobile number in the required field
Verify the mobile number using the OTP sent to your phone
Submit the request
Save or note the acknowledgment/reference number
Check the status of your request online if needed
Visit the nearest electoral office or voter service center if online linking is not available