Our building consists of a basement & ground floor( being used as commertial complex) above that Ist floor, IInd floor & IIIrd floors each consisting 4 flats (used for residential purposes),In the sale deed of all the residents it states the terrace may be accessed for TV antenna &for the water tank . The builder had kept the terrace right for himself. Further he sold the terrace to some other person (not a resident of our complex). That party had tried to build a floor on the terrace but the MCD had demolished the same onthe complain of the residents. The said terrace owner has kept some of his belongings on the open terrace. We wish to know if there is any way to stop his access as we are not clear about his intentions for frequenting the terrace and we feel threatened.