Answer : 3. "Ritu Raj Awasthi"
Explanation :

Justice Ritu Raj Awasthi took oath as judicial member of Lokpal. The Lokpal of India is headed by Justice A.M. Khanvilkar administered the oath to him. Justice Ritu Raj previously served as the Chairperson of the 22nd Law Commission of India. He has also been the Chief Justice of Karnataka High Court. Pankaj Kumar and Ajay Tirkey took oath as Lokpal members.