Which of the following are the key features of 'National Ganga River Basin Authority (NGRBA)? 1. River basin is the unit of planning and management. 2. It spearheads the river conservation efforts at the national level. 3. One of the Chief Ministers of the States through which the Ganga flows becomes the Chairman of NGRBA on rotation basis. Select the correct answer using the code given below.

The National Ganga River Basin Authority (NGRBA) was constituted as an empowered planning, financing, monitoring and coordinating authority for the Ganga River under the Environment (Protection) Act, 1986. Let's analyze its key features: River basin is the unit of planning and management: This is a core principle of NGRBA. It adopted a basin-level approach for comprehensive planning and management of the Ganga River, recognizing that a river is an ecological entity with interconnected ecosystems throughout its basin. This statement is correct. It spearheads the river conservation efforts at the national level: The NGRBA was established with the mandate to abate pollution and conserve the river Ganga. It functions as the highest-level body to spearhead and oversee conservation efforts for the river at the national level. This statement is correct. One of the Chief Ministers of the States through which the Ganga flows becomes the Chairman of NGRBA on rotation basis: This statement is incorrect. The Prime Minister of India is the ex-officio Chairperson of the NGRBA. The Chief Ministers of the states through which the Ganga flows are members of the Authority, but not its chairperson on a rotational basis. Therefore, statements 1 and 2 are correct.