I am the owner and resident of a flat in an apartment at Chennai. Two years back, I noticed that the wall between hall and bathroom in my flat is cracked and water is leaking through it. I consulted with few of our flat association members and then with plumbers. All are confirmed that this is due to changing of the closet from Indian to Western in the flat above my flat. In the one-year of period, the electric switches and wiring in the wall are burnt/damaged. The flat owner suggested to check whether it was due to rain. I waited for rainy season to over and checked too. Finally the flat owner was agreed to rework at bathroom of his flat and he had had reworked his bathroom. He has paid for the rework at his flat. But, according to him and plumber who had done the rework, my bathroom wall would take time to dry. But my wall is still leaking when the tenant of his flat is using the bathroom. So, I searched for good plumber and got quotes from few plumbers. I have sent the scanned copies of these quotes to that flat owner and requested him that he has to arrange for another rework with suggestions of the plumbers. I also mentioned that he has to pay for the rework at his flat and I will pay and do the repair of the wall at my flat. He replied that I need to get his bathroom rework done and he will pay only 50% of the cost. He did not mention anything about repairing my bathroom wall and electrical rework.
Now, my question is why I need to pay 50% of his bathroom rework cost and 100% of my bathroom wall repair and electrical rework since the damage is caused by his bathroom work, which has not been done properly. I request you to give your legal opinion and suggestions on this to get justice and whether I can move it legally. Please let me know if you need any more detail/clarifications.
Thanks.