Kolkata, Jan 29 (ANI): A court in Kolkata city sent five people, accused in 2014 blast in Burdwan district, to police custody till February 03. Two members of the Jamaat-ul-Mujahideen Bangladesh were killed in an explosion while building homemade bombs in Burdwan district of West Bengal in October last year. Police in December had arrested a key suspect in the blast who they believed was linked to a plot to assassinate Prime Minister Sheikh Hasina of Bangladesh and stage a coup there. A lawyer of National Investigation Agency (NIA), Shyamal Ghosh said that they needed more time to unearth details of their involvement. He further said that the accused used to recruit young boys and give them training.