Delhi Jal Board — excess water bill, without consuming water

Address:

110015

We are having water connection from delhi jal board with
K no [protected].
We have noticed that from the last 3 - 4 bills, bills for consumption of water is on the very high side, though consumption is very low. You can verify our records for the last 3 years.
Please get the meter checked & adjust the overcharged bill amount in the a/c in future bills.