Ajmer Vidyut Vitran Nigam Limited — wrong billing with high fixed charges

Address:

AVVNL

Kno[protected]

My previous bill of may2020 was ₹1100.
Where the
Previous reading was - 6469kwh
Current reading - 0 kwh

But consumption shown - 93kwh and i paid ₹1100.

Now, i have received bill of july2020 which is ₹2261.
Where the
Previous reading is - 6469kwh (Same reading as in the previous bill the 93kwh for which i was charged is not added)

Current reading - 6815kwh

Consumption shown - 346kwh (Previous bill 93kwh are not deducted and bill is generated on 346kwh)

The fixed charge in previous bill was ₹550
And in this bill it is ₹1100 reason for this i don't understand??

Their is other charge of - ₹93.24 which is for what don't know??

Electricity duty is on 346kwh power then it is wrong as i have already paid duty for 93kwh in previous month bill.

So all over my bill should be made on
346kwh - 93kwh = 253kwh
And the fixed charges?? I totally don't understand fixed charges are fixed or changed in each bill??