Which one of the following has been constituted under the Environment (Protection) Act, 1986 ?

The Central Ground Water Authority (CGWA) was constituted under Section 3(3) of the Environment (Protection) Act, 1986, following a Supreme Court directive to regulate and control groundwater development and management. While the Central Ground Water Board (CGWB) is a tempting choice, it was established in 1970 via an executive order and serves as a subordinate office under the Ministry of Jal Shakti rather than a statutory body under the 1986 Act. This question tests the core concept of the statutory origins and legislative mandates of key environmental and water management regulatory bodies in India.