Flat owner not obeying as per leave and license agreement

I have renew my leave and license agreement on 8 Dec 2016. From last 1 and half month there was not a single drop of drinking water. After repeatedly complaining the same to the flat owner he has not done any thing. I also ask for reimbursement of drinking water bilder bill but he denied. So on 2 mar 2017 i informed him that I m vacating the flat within 7 days . But he denied and gave me reason that as per Agreement i have to give 1 month notice. For which I agree and given 1 month notice on 2 mar. So I search for a new flat done Agreement with the new flat owner. But now when I informed Him that on 29th mar 2017 i m vacating the room he denied and informed me that you have to live for 11 month or he will deduct 11 month rent. I opposed him and informed him that as per Agreement point no 11 if any body want to vacate room earlier than the mention period then i or you have to give 1 month notice in vocal or writing before vacating room. But he is denying the same. And harassing me stating that I have not given him any notice. For which I informed him that on 2 mar vocally i have given 1 month notice and had whatsapp the same in 11 march. Now he is harassing me. Please suggest what can be done