(1) No person other than a licensed plumber or licensed water supply contractor shall execute any work concerned with drainage or water supply and no person shall permit any such work to be executed except by a licensed plumber or licensed water supply contractor:

Provided that if in the opinion of the Municipal Commissioner or Chief Officer the work is of a trivial nature permission may be granted in writing for the execution of such work by a person other than a licensed plumber or licensed water supply contractor.

(2) Every person who employs a licensed plumber or licensed water supply contractor to execute any work shall when so required furnish to the Municipal Commissioner or Chief Officer the name of such plumber or contractor.

(3) When any work is executed except in accordance with the provisions of sub-section (1), such work shall be liable to be dismantled by the municipal council without prejudice to the right of the council to prosecute under this Act the person at whose instance such work has been executed.

(4) If any licensed plumber or licensed water supply contractor contravenes any bye-law made under clause (cc) of sub-section (1) of section 324 or of the conditions of his licence, his licence may be suspended or cancelled whether he is prosecuted under this Act or not.

(5) Whoever contravenes the provisions of sub-section (1) or (2), shallbe punished with fine which may extend to twenty-five rupees.