Complex sentence: Police later found that the attack was carried out by local mafia at the behest of welfare department officials itself; accordingly, police arrested nine people, including Mukesh Chaudhary, a SP leader, and Ashok Kashyap, an Assistant accountant of welfare department.
Split into simpler sentences: Police later found that the attack was carried out by local gangsters at the behest of welfare department officials. Police arrested nine people, including Mukesh Chaudhary, a SP leader, and Ashok Kashyap, an Assistant accountant at the welfare department.