Delhi Jal Board — upset with d jal board process

Address:

New Delhi, Delhi, 110065

There is no water supply in our building as well as some more buildings... We get water one day and that is at ridiculous time that is after 2:30 am n then not receiving 4-5 days... Then one day we receive n then again 10 days no water supply... Daily we awake whole night... On d hope that water will come
The line man is saying there is blockage in d severe... But if there is a blockage... How it will come once in a while