New Delhi, April 17 (IANS) Aam Aadmi Party’s (AAP) Rajya Sabha member, Raghav Chadha, on Friday greeted Harivansh on beginning his third term as the Deputy Chairman of the Upper House. New Delhi, April 17 (IANS) Aam Aadmi Party’s (AAP) Rajya Sabha member, Raghav Chadha, on Friday greeted Harivansh on beginning his third term as the Deputy Chairman of the Upper House.