NMMC — Water supply to sector 5 ULWE

Shakti Residency CHS has regular water supply problems.
Managing committee says water supply is irregular and with low pressure.
I own 2bhk flat in C wing. C 303.
There are 3 wings A.B & C
All wings have separate bottom underground tanks.
Bldg watchman is in charge of regulating supply to residents.
But C wing is the most affected.
I want to know if Society Water Audit can be conducted. What are it's charges.
I suspect some residents have created internal storage tanks of beyond their required usage capacity.
Causing shortage of water to higher floor residents.
My contact number [protected]
Email. [protected]@gmail.com.
I request you to repute your Engineer to site and see & find out what the problem is.
Please let me know site visit charges.
C wing is facing shortage problem for past 6 months.
Managing committee is not responding or replying to residents questions on this.
Request please assist & help suitably.
All charges shall be borne by me.
Regards
Milind Sapre
C 303
Shakti Residency
Plot 66. Sector 5
ULWE 410206