To link your Aadhaar with your TNEB account, visit the official TNEB or TANGEDCO website and navigate to the Aadhaar linking section under customer service or account management. Enter your service number (found on your electricity bill) and your Aadhaar number, then verify your identity through the OTP sent to your registered mobile number. After entering the OTP, submit the form. You will receive a confirmation message on the screen, possibly via SMS or email, indicating that your Aadhaar has been linked to your TNEB account. Keep a copy of this confirmation for your records.