North Bihar Power Distribution Company [NBPDCL] — Wrong bill charged

Address:

Darbhanga, Bihar, 846001

Dear sir;
As my ca number is:[protected]
As my bill amount is approx 6 lacs which seems to be wrong charged please suggest me what i do.
As i complaint in nbpdcl wesite approx 100 times they just change my status of complaint from open to resolve.
My complain number-[protected].
Please suggest me what are the document required to file in consumer court and what are the procedure.
As its being a year but still faces the same issue my parents where called several times to electric office but there where no progress as they submit all the required documents. They says that its ok it will be corrected in next bill but it had not been corrected yet. Please suggest a path such that bill can be corrected.
You can contact me through mail to on-
Govind. [protected]@sasdm.org