Visit the official Voter Services Portal: https://voters.eci.gov.in/
Sign in or create an account using your mobile number
Open the option for linking Aadhaar with Voter ID
Enter your EPIC number
Enter your Aadhaar number
Verify the details shown on the screen
Submit the request
Complete OTP verification if prompted
Save the acknowledgment or reference number
Check the status of the request later on the portal