Section 45(6)(a) in The Chennai Metropolitan Water Supply and Sewerage Act, 1978
(a)supply of water for domestic consumption and use shall be deemed to include a supply-(i)for flushing latrines or house-sewers;(ii)for all bath other than swimming baths or public baths;(iii)for the consumption and use of inmates of hotels, boarding houses and residential clubs and for baths used by such inmates; or(iv)for the consumption or use of persons resorting to theatres and cinemas; and