Section 61(i) in The Haryana New Mandi Townships Building Rules, 1967
(i)It shall be constructed of good sound pipes of suitable material and this requirement shall be deemed to be satisfied if new glazedware pipes conforming to either British Standard Specification No. 65-1937 or No. 514-1937 or new cast iron pipes conforming to British Standard Specification No. 78-1938 or new concrete pipes conforming to British Standard Specification No. 556-1934 are used, provided that in the case of connection from the closet to the nearest manhole cast iron soil pipes conforming to British Standard Specification No. 416-1935 may be used. If the pipes traps and fittings are made of cast iron, they shall be effectually protected against corrosion by being coated on both the inside and the outside, with suitable anti-corrosive solution;
