Section 276(1) in The West Bengal Motor Vehicles Rules, 1989
(1)Every producer shall be installed and maintained in accordance with the specifications with all reasonable care necessary to prevent danger from fire, gas poisoning and burns, and in particular, all pipes, joints, valves, and all covers to hoppers, generators, collars, filters and any other accessories shall be free from gas or air leaks, and all exposed hot surface shall be effectively screened from accidental contacts.