Daimary initially founded a militant group named Bodo Security Force in October 1986.
Later, in 1994, Bodo Security Forced was renamed as National Democratic Front of Boroland.
[8] Ranjan Daimary was detained in Dhaka by Bangladesh Rifles (BDR) in December, 2009[9][10] and was later handed over to Border Security Force (BSF) authorities on 30 April 2010.
[16][17][18][19] Mr. Daimary was released on a parol of four weeks by order of the Gauhati High Court and flown to New Delhi to take part in the ongoing peace talks with Bodo Militants & Union of India.
[24][25] where Daimary and 9 others were sentenced to Life Imprisonment by the special court of the Central Bureau of Investigation (CBI).