If you live in Chennai then you understand that there is a municipal tax linked with the water amenity provided to you. And this is collected from every individual citizen under the Greater Chennai Corporation region so CMWSSB Water Tax online payment that service tax for water is collected under the Government of Tamil Nadu Municipalities. If you live in Chennai then you understand that there is a municipal tax linked with the water amenity provided to you. And this is collected from every individual citizen under the Greater Chennai Corporation region so that service tax for water is collected under the Government of Tamil Nadu Municipalities.