Harassment by neighbour

We are living in DDA flats Tigri as these flats are owned by two parties one at ground floor and other at upper floor. We are at ground floor and there is a family of around 5-6 people at first floor so what actually happening is there is a continuous leackeg of water (dampwall) in our room, from there house don't know whether its from there bathroom or from somewhere else but it's coming from there side and we have also already shown it to the lady that she have to repair the conserned part from where the water is leaking but she is not ready to do anything. Once we have call to 100 after some fight and argument but police officer refuse to do any thing saying that I can't do anything in such type of matter we daily use to stop that lady told her to get it repaired so it won't affect us but is ready to fight and argument but not to do anything else and now the situation has become worst (after almost 7 months) the wall is fully wet dripping water and our room and spoiled everything but the lady is not ready to do anything. Help us regarding this.