Acting on a tip off, the hideout was busted last night at Jateswar area and the linkman Ganesh Mandal was arrested. However, the other ultras who were present there managed to fled from the spot, SSB sources said.
The recovered bombs were diffused during the day and the linkman was sent to seven-day police remand by a local court.
Search is on for the absconding KLO men, the SSB sources added.