Neighbors — i m complaining about our neighbors are wasted too much water daily, when our area's water supply is open

Address:

Amba vihar, Near Bhamate Maaharaj Temple, Akoli Road, Amravat, Amravati, Maharashtra, 444605

I stay in amba vihar, amravati and our neighbors seem to care less about water. Even when there is a water shortage going, our neighbors just start filling up their water tank and do not close the water supply for at least 8-10 hour after the water starts overflowing. This occurs at least daily. Our neighbors are shop keeper & some families are staying there on rent,. I am unable to file a complaint with amravati municipal corporation. There seems to be no online help. Kindly help.
I doubt that there is illegal connection of water supply & also electricity.