The Special Investigation Team (SIT) has filed two charge sheets against the three accused in the recent riots in the district,an official said. The charge sheet was filed on Friday in the court of CJM K P Singh. The three accused Ikbal Singh,Rupender and Mohkam Singh have been charge sheeted in two separate cases, SIT Inspector,Ram Ratan Singh said. The charge sheet against 13 more accused has not yet filed because they have been absconding,Singh said Police has started attachment proceedings against them,he added. More than 60 persons were killed and over 40,000 displaced in communal violence that had broken out in Muzaffarnagar and adjoining areas in September this year.