The Government of India has established NITI Aayog to replace the

1. A

   Human Rights Commission

   (a) Human Rights Commission. NHRC continues under the Protection of Human Rights Act. NITI Aayog did not replace it.

2. B

   Finance Commission

   (b) Finance Commission. A constitutional body under Article 280; still in place. Not replaced.

3. C

   Law Commission

   (c) Law Commission. An executive commission that still exists. Not replaced by NITI.

4. D

   Planning Commission

   (d) Planning Commission. NITI Aayog was set up on 1 January 2015 to replace the Planning Commission. That is the official key.

Summary. Official key is (d) Planning Commission. NITI Aayog succeeded the Planning Commission as the Centre’s think-tank and cooperative-federalism body. NHRC, the Finance Commission and the Law Commission were not replaced. Only the Planning Commission matches.