Calcutta Electric Supply Corporation [CESC] — bill

Address:

Kolkata, West Bengal, 700019

My consumer no-[protected]. My july'17 mnth consumption - total unit is 221 and amnt payable is 1520/-, in the mnth of aug'17 consumption=9unit amnt payable=57/- and sep'17 consumption = 126 unit amnt payable=860/-.

Is it possible that there is so much of consumption in the month of spt'17. Already i have given a mail earlier in the month of july '17regarding the bill.
I have a doubt that the meter may be faulty or electricity is being tapped from my meter. Plz solve the issue asap. Or else i have to take action regarding this matter