Section 4(2)(e) in The Special Rules for the Mulit-storeyed and Public Buildings, 1974
(e)in the case of prefabricated buildings, drawings describing the elements of the structure or assembly including all required data of physical properties of component materials with details of joints to an enlarged scale, location of services such as installation of pipes, wiring or other accessories in site or in the prefabricated element and location of handling arrangements for lifting and handling the prefabricated elements;