About 100 metric tonnes of solid waste are collected from the city daily in door-to-door collection; source segregation and disposal is performed by the sanitary department of the Tirunelveli Municipal Corporation. The underground drainage system was constituted in 1998, covering 22 percent of the corporation area. The remaining system for disposal of sewage is through septic tanks and public conveniences. The corporation maintains a total of of stormwater drains, 27 percent of the total road length. The clinics operated by the corporation provide primary health care to the urban poor through family-welfare and immunisation programs. In addition, there are private hospitals and clinics providing health care to citizens.