What should we do if police doesn't help us..?

I reside at mumbai central and our neighbours have been torturing us since 2006. There was a lady named nasreen ansari she always used to teach all of the other neighbours to not talk to us when we were new and told all th children to not play withmy daughter. She always defamed us as being the most quarelling person(which she was). This continued but we tolerated one day she bought gangsters and they were all drunk and they came and fough with us after which we went to the police but the issue was sorted. In 2011 rubina khan came to our neighbourhood nasreen then again met her and told her about us that we were quarrelsome people and mrs rubina khan she harrased us a lot. She fought with us every other day and called the police every second day. She also made a group and sidelined my son and the cgildren don't take him for playing. Every other person harrases us now as the constant coming of police at our place has defamed us. Also her son sohaib harrases and stalks my daughter. After which nasreen retired and a new tenant has arrived in her house named arif ansari. These people also harrased us bit we tolerated. On 14th aug his children were playing in the corridor and were yellimg a lot so we just told them silently but they didn't listen we told them thrice but then some womem came from his house and started fighting with us and abusing us. These are new people but they are relatives of rubina khan which is why they fought. But in the night both of these families rubina's and arif's family decided to fight. At night around 11:30 arif's family banged our doors, tgey had come witha mob of around 10 to 15 people including male and female and tgey abused us, spoke filthy languages and vulgar languages for me and my daughter. They challenged us to come out as they wanted to beat us. And the police has only filed and nc and told us that i've put a chapter case on them. Now rubina and arif's family are doing groupism and the police is not supporting neither us nor them. What should we do..?