To identify the new Vice Chairperson of NITI Aayog:
1. Suman K Bery was appointed as the new Vice Chairperson of NITI Aayog in April 2022.
2. NITI Aayog is a policy think tank of the Government of India, established to foster involvement and participation in the economic policy-making process.
3. The other individuals listed are notable economists but were not appointed to this position.
Therefore, the correct answer is (3) Suman K Bery.