Statement 1 is incorrect: The National Development Council (NDC) is not an organ of the Planning Commission. It's an independent advisory body headed by the Prime Minister and includes Chief Ministers of all states, Union Cabinet Ministers, and members of the NITI Aayog (successor to the Planning Commission). It was set up on 6 August 1952.

Statement 2 is correct: Economic and Social Planning is listed in the Concurrent List (List III) of the Seventh Schedule of the Indian Constitution.

Statement 3 is correct: The Constitution (Article 243G) empowers Panchayats (local village governments) to prepare plans for economic development and social justice at the village level. This promotes decentralized planning and community participation.

Hence, statement one is incorrect and statements two and three are correct.

Note: While the NDC was proposed to be abolished, it has not been formally dissolved, although its powers have largely been transferred to the NITI Aayog's Governing Council.