Uttar Pradesh Power Corporation [UPPCL] — Regarding Extra amount added in electricity bill

Address:

721, Raiganj Ayodhya

Dear Sir My account number is [[protected]]. In the month of January, new meters were installed in all the houses of Ayodhya. The old meter was removed. That's why I deposited the December and January bill of Rs.3517 in February and February bill of Rs.2382 in March and also I deposited the March bill of Rs.2482 in April.
Even after depositing this much payment, he has increased the amount of April bill which is to be paid in May to Rs.8565 and has changed the previous reading to 00 and the current reading is 1267. On what basis has he done this?
Please help me sir.