The accused have been identified as Chand and Sadeeb Khan, both residents of Muzaffarnagar, and Shahid, a resident of Saharanpur in Uttar Pradesh.
"We are interrogating them about their accomplices to get some leads about their hideouts and further investigation is on," said a police official.
After receiving a tip-off that the accused would come on February 27 in Usmanpur area to rob a businessman, police laid a trap and arrested them.