Pay early to avoid unexpected network / connectivity issues on the last date Make payment of LT Electricity Bills only through TANGEDCO Section Office. Payment Option > Debit Card/Credit Card/Net Banking. Use any valid bill online and pay. You will be taken to page where you can see your current bill online. Online Electricity Bill Payment --Select Service Number: OR. Unique Service Number: Please enter your email id, and click on 'Make Payment '. Email Id.