Correct Answer: (c) 1 January, 2015
Solution:NITI Aayog (NITI: National Institution for Transforming India), was established on 1 January, 2015 by a Cabinet Resolution to replace the Planning Commission. It is a public policy think tank of the Government of India, established with the aim to achieve sustainable development goals with cooperative federalism by fostering the involvements of State Governments of India in the economic policy-making process using a bottom-up approach. Prime Minister is the ex-officio Chairman of the NITI Aayog.