National Investigation Agency (NIA) court in Guwahati in Kamrup Metropolitan District of Assam on June 12 sentenced a United Liberation Front of Asom-Independent (ULFA-I) militant Gagan Hazarika alias Joydeep Cheleng for six years in prison, reports News 18. He was arrested from Charaideo District in 2017. His confessions had helped NIA corroborate that ULFA-I’s ‘chairman’ Abhizeet Asom is an England based doctor named Mukul Hazarika.