Section 124 in West Bengal Municipal (Building) Rules, 2007
124. Privy.
No other privy except connected privy discharging into the underground sewerage system shall be constructed in any building. The floor of every privy shall be made of cement concrete Patent stone or vitrified or well-pointed earthen tiles or mosaic and shall be in every part at a height of not less than thirty centimetres above the level of the surface of the ground adjoining the privy. The floor of every connected privy in which the opening of the pan is placed on the level of the floor shall have a fall or inclination towards the pan of at least one in twenty four. Every connected privy situated in a building shall have opening of not less than 0.55 sq meters in area in anyone of the walls of the privy as near the top of the wall as may be practicable and communicating directly with the open air.
