One person sustained serious injuries when a bomb kept in Tiffin-box went off in Janakpur on Saturday morning. The injured person has been identified as Shrawan Kumar Yadav of Siraha who was living in a rented house in Pipariya-4 of Janakpur. Yadav is a student of Health Assistant at local college. The bomb went off when Yadav was trying to lift the Tiffin carrier placed outside his room by an unidentified gang, informed Yadav’s friend. Police are investigating on who placed the bomb there. Yadav is receiving treatment at Janakpur Zonal Hospital. However, hospital has referred him elsewhere citing treatment is not possible there.