Delhi Jal Board — water bill excess

Address:

bahl dental clinic and implant centre, New Delhi, Delhi, 110018

Respected sir/madam
I got installed a new water meter in the month of september 2019 by delhi jal board employee with k no: [protected]. I have received a water bill of rs. 9217 with bill period of 5/10/19 to 7/12/19 (I. E 2 months). There is not any previous balance or pending amount.
I have a 200 litre water tank only. I do not live here full time. There is neither cooking nor clothes washing type of household work involved.
Kindly have a look into this matter.
Yours faithfully,
Ashwin poddar
23a/7b ground floor
Tilak nagar, new delhi.