Ten union parishad chairmen of Dimla upazila have filed complaint against three Bangladesh Chhattra League (BCL) leaders of the upazila alleging extortion. Chairman of Balapara union parishad on behalf of all the ten chairmen submitted the complaint with Dimla police station on Monday night. The accused are secretary of the upazila committee Uttom Kumar Roy, former upazila unit president Maruf Hossain Khan Lohani and former upazila unit secretary Ferdous Jahan Parvez. Sources said the accused Chhattra League leaders demanded one lakh taka toll from each chairman. They also threatened to assault them physically if the chairmen failed to meet their demand.