Water bill

I moved in a flat in the month of june at that time owner said me that you dont have to pay for water it is included in your rent. And then we suffered from water crises like we ar three people in 2bhk and we uses water only for bath and cleaning, we didnt use water for clothes washing because we have laundary system and we didnt have an washing maschine, so the water tank usually becomes empty in the evening and the night around 10-12. And in this situation we request the owner to gives us some water but he didnt provides us water and said that there is timing of water and it comes onky in the morning hour of 1hr from MCD and he also said that he already request the delhi jal board for new connection. One day he comes in my floor and indicate a switch for motor and said that you switch on it in the morning for 1hr .we do that for the same for almost two month. And one day that is 19th sept he said that your water bill is two much and give a water bill that is on his name bt of my floor which is 10 thousand.He said he took a new connection for me and new meter. But he never show ne the neter never discussesd about the seperate meter reading. What i can do. The building consist of 5 floors.In the three floors the owner and their family leaves. And they didnt took the water biil from the top floor tenant and as well as the ground floor tenant. And he never showed us the meter reading .