Delhi Jal Board — too much bill

Address:

Mansaram Park, Uttam Nagar, New Delhi, Delhi, 110059

To,
The EXECUTIVE Engineer
Delhi Jal Board
E98/99, mansaram park, uttam nagar, NEW DELHI
Ref: Connection no k no [protected]
Sub : too much Excess Billing
Dear Sir,
Your KIND attention is drawn to the following table for your kind perusal and necessary action. These are the only details available with me .I received a message from delhi jal board
"Dear Consumer Kno: [[protected]], Please pay bill amount of Rs [23882.00] by [19-Jul-2019] to avoid penalties." What is this. The bill is too much high. I never use more than 500 l in a day. Kindly do something and verify it what's happening.