Section 429(1)(b) in Greater Hyderabad Municipal Corporation Act, 1955
(b)a specification of each description of work proposed to be executed and of the materials to be employed. Such specification shall include a description of the proposed method of drainage of the buildings intended to be erected or re-erected and of the sanitary fittings to be used and also of the means of water supply and shall if required by the Commissioner be supplemented by detailed calculations showing the sufficiency of the strength of any part of such building;