A Sikh man was abducted from his house yesterday and gunned down by suspected militants in Afghanistan’s restive Nangarhar province bordering Pakistan, a media report said today.Rawail Singh, who lived in Jalalabad, was killed in Khalis Famil area.The minority Sikh community staged a demonstration, placing Rawail’s body in front of the provincial governor’s house in Jalalabad and demanding the arrest of the killers. Later, Deputy Governor Mohammad Hanif Gardiwal met the protesting Sikhs and pacified them. He said a case had been filed and a manhunt launched to nab the culprits.