Explanation:

Sikkim's Chief Minister is not member of NGRBA.
National Ganga River Basin Authority (NGRBA) is a financing, planning, implementing, monitoring and coordinating authority for the Ganges River, functioning under the water resource ministry of India. The mission of the organisation is to safeguard the drainage basin which feeds water into the Ganges by protecting it from pollution or overuse. In July 2014, the NGRBA has been transferred from the Ministry of Environment and Forests to the Ministry of Water Resources, River Development & Ganga Rejuvenation, formerly Ministry of Water Resources (India).