Section 14(1)(ii) in Haryana Municipal Building Bye-laws 1982
(ii)Subject to the restriction shown in the zoning plan of Architectural/frame control sheets no building shall contain more than 2 storeys. However, any building may have a Mamti or Barsati with toilet facilities and the total area to be covered excluding the stair-case shall not exceed 25% of the maximum permissible coverage on the ground floor or 50 sq. metres, whichever is less.