SUNSARI: Ajaya Kumar Rai alias Kaila Khambu, Central Committee member of Kirati Janawadi Worker Party (KJWP) and Bhojpur district coordinator, was arrested in Taltaliya, Sunsari on Saturday night for his involvement in the bomb attack at the Vice President's residence. According to Surendra Sitaula, Police Inspector at Area Police Office Itahari, an investigation is underway.