Calcutta Electric Supply Corporation [CESC] — Complaint for an excess bill

I am domestic consumer of electricity under the CESC Ltd customer id [protected] I regret to observe that the electric bill for the month of May 2021 (Rs.5600.00) seems too high in relation to other bills of the previous months . My six months consumption is as follows :
November[protected]units
December[protected]units
January[protected] units
February[protected]units
March[protected] units
April[protected]units

The amounts charged in the bill of May 21 (Rs. Five thousand Six hundred only) is heavier than what I actually pay every month, while the consumption is usual.

I would also like to request you look into the matter by rechecking/recalibration of my electric meter.

Thanking you.
Yours faithfully
Date: 08.06.2021
(Balkrishran Khator)