Formation Of New Reservoir In Kovalam Sub Basin In Between Ecr And Omr Road In Thiruporur Taluk Of Chengalpattu District. Phase1. Package 1 Eastern And Southern Side. Formation Of New Reservoir In Kovalam Sub Basin In Between Ecr And Omr Road In Thiruporur Taluk Of Chengalpattu District. Phase1. Package - 1 Eastern And Southern Side.