Section 2(1)(ae) in The Kerala Panchayat Buildings Rules, 2011
(ae)'drain' includes a sewer, pipe, ditch, channel, and any other device for carrying of sewage, offensive matter, polluted water, sullage, waste water, rain water or sub-soil water and any ejectors, compressed air means, sealed sewage mains and special machinery or apparatus for raising, collecting, expelling or removing sewage or offensive matter to the sewage outfall;