Calcutta Electric Supply Corporation [CESC] — abnormal bill amount

Address:

Kolkata, West Bengal

Last 02 months i have been billed huge amount in comparison to the same period last year.
I find no reasonable ground for enhanced consumption.
Kindly check it, find out the fault and correct it.
Customer name nupur nandi maiti
Id [protected]
Consumer no. [protected]
Regional office: south regional office
Custom account manager mr. Somdipta chakraborty, sn.com. Executive