Uttar Pradesh Power Corporation [UPPCL] — Extra load in Account ID- [protected]

The account id is mapped on name of Mr. Sunil Gautam at my residential address - F-5, 2nd Floor, A R Apartments, Plot- 2/10A, Sector -9, Vaishali, Ghaziabad, Uttar Pradesh. We are using this connection from past 3 years at a load of 6 KWH, however from past 2 months our bill is coming penalty stating that the used load is 7.5KWH. however, we are neither using any additional electric equipment nor is there any increase in nay living members in the house on the contrary there is a reduction in members and so the consumption has decreased, same is evident in my billing amounts as well, if compared to previous year invoices of same months.
We need a resolution of this penalty amount.