Construction of additional floor in residential building

Where any other law for the time being in force regulating the construction of additional floor or construction of residential building, which has been enacted under Entry 5 of the State List of the Seventh Schedule to the Constitution of India, or any rules or regulations or by-laws made thereunder, permits the construction of less than three floors, then notwithstanding anything contained in the aforesaid Act or law or rules or regulations or by-laws, the construction of one additional floor in such residential building shall be permissible subject, as the case may be, to the approval under the aforesaid Act or law.