CBI has announced 10 lakh rupee reward for information leading to the arrest of the absconding Additional Director General of Rajasthan Police A K Jain accused in a fake encounter killing case of 2006.Besides Jain, CBI also announced a cash reward of five lakh each against Inspector Rajesh Chowdhury and Zulfiqar and Assistant Sub Inspector Arvind.In its charge sheet filed last year in June, CBI had alleged Dara Singh, a liquor smuggler, was taken into illegal custody by the police officials from Jaipur Airport. Later he was taken to a lonely place near Amber where he was kept hostage till October 23, 2006, when he was killed in a planned manner.