Damage to home due to construction work in neighbourhood

Dear Sir, I am living in JVTS Garden, Chattarpur, New Delhi. There is a construction work was going on in my adjoining house from last one year and half months, since January, 2016. Side wall of both the houses are joined. During construction process our house has suffered severe damages, like cracks in house walls and sink the land also, seepage of water from side walls,damage floor work and damage to exterior paint and pop. They used heavy drill machines and hammers to construct the five storey building and eight house/flates resulting in heavy vibration and jolt to our house. I have informed the Builder about the above said problems. Initially they assured us that he will repair and paint our house in due course. On his oral assurance we never resisted despite heavy disturbance and pollution in the nearby area. But as their work is completed and all the eight residence uses by the owners and renters. But he is not acting to their promise. Kindly suggest me legal remedy to this problem. With regards, PREM KOHLI C123 JVTS Garden, Chattarpur email: [deleted]/ph: [deleted]