West Bengal State Electricity Distribution Company [WBSEDCL] — Abnormal high electric bill

Wbsedcl has given me over 15000 bill for 3 months when my usual 3 months bill is 4900 max, last year they charged me over 12000 for 3 months after puja,

This is pure ransom money and direct extortion and it does not matter who or how many times you complain once a bill is generated even if wrong the company will force you to pay the bill or they wi disconnect the connection this is a crime
The electric department is making Hugh profit and they mercessly charge ridiculous amount from public to enjoy their biryani party at evening ..