 The major sewerage system for disposal of sullage is through septic tanks and public conveniences.Roadside drains carry untreated sewage out of the town to let out raw into the sea or accumulates in low-lying area.Kumbakonam comes under the Cauvery River Delta Area (CRDA) of the Bharat Sanchar Nigam Limited (BSNL), India's state-owned telecom and internet services provider.