Municipal Corporation Of Delhi — water leakage of 1st floor resident

Address: G 9/42 sector 15 rohini, New Delhi, Delhi, 110089

I am the resident of g 9/42 ground floor sector 15 rohini new delhi 110089. There is a huge water leakage from 2nd floor resident, we asked them to rectify the problem but they deny to do that. Sir please help us. He is saying if we permit for reconstruction then only he rectify that. Also due to his cooler water overflow our front walls also get damp.