A speedy trial started Monday in the case of the alleged gang rape of six women at gun-point in Bihar's Bhojpur district, police said.Bhojpur Superintendent of Police Rajesh Kumar said a speedy trial of the three accused started in the court of the additional district judge in Ara, district headquarters of Bhojpur.Six women were allegedly gang raped Wednesday in Kurmuri village.Rajesh Kumar said a special five-member team has been constituted for the case and police filed a charge sheet in connection with the case Saturday.The trial will be completed by the end of this month, he added. "The probe has found three arrested men, including main accused Neel Nidhi Singh, guilty of the crime. Singh is a former commander of Ranveer Sena, private militia of landed upper castes," he said.Besides, Rajesh Kumar said a medical examination has confirmed that that the women were raped.