Former Director of Central Bureau of Investigation Uma Shankar Mishra, a 1968-batch IPS officer of Odisha cadre, passed away on Thursday. He was undergoing treatment at a private hospital in Delhi. Mishra was the main strategist in the arrest of underworld don Abu Salem and his girlfriend Monica Bedi. He had also served as Special Director to the CBI before taking charge as its Director in 2003. Besides, he was a member of the Meghalaya’s Planning Commission and an adviser to the Microsoft India.