(1) After the plans and specifications of the building as approved by the authority which is required so to do under any law are disclosed or furnished to the person who agrees to take an apartment, the promoter shall;
(i) not make any alterations in the structures described therein in respect of such apartment, without the previous consent of that person; or
(ii) not make any other alterations in, or additions to the structure of the building or construct any additional structures, without the previous consent of all the persons who have agreed to take apartments in such building.
(2) Subject to the provisions of sub-section (1), the building shall be constructed and completed in accordance with the plans and specifications aforesaid; and if any defect in the building or material used, or if any unauthorised change in the construction is brought to the notice of the promoter within a period of two years from the date of handing over possession, it shall wherever possible be rectified by the promoter without further charge to the persons who have agreed to take the apartments, and in other cases such persons shall be entitled to receive reasonable compensation for such defects or change and where there is a dispute as regards any defect in the building or material used or any unauthorised change in the construction, or as to whether it is reasonably possible for the promoter to rectify any such defect or change, or as regards the amount of reasonable compensation payable in respect of any such defect or change which cannot be or is not rectified by the promoter, the matter shall, on payment of such fee as may be prescribed and within a period of three years from the date of handing over possession, be referred for decision to the competent authority and the competent authority shall, after giving an opportunity of being heard to the parties and after making further enquiry, if any, as it may deem fit, record its decision and the decision so recorded shall be final.