I have taken a flat in Mumbai and want to do the registration of the flat. The builder has written a clause in the agreement that the maintainance of the flat will be 40 Rs per sq ft whereas the cost is too high considering the area of the flat. I have asked the builder what will the maintaininace be and he says it would be 12 Rs but he isn't ready to write that amount on the agreement. Also there is a clause for possession date, the builder is not ready to write the possession date in writing because of which its delaying the registration of the flat. Can some one tell me what can be done in such a case.