The ban is applicable to all factions of NDFB, sources said.
The notification declaring the National Democratic Front of Bodoland (NDFB) as an outlawed organisation under Unlawful Activities (Prevention) Act for five years was issued by the Home Ministry on Monday, official sources said.
The Home Ministry has approached a Tribunal set up by the Delhi High Court for the ratification of its order.
The anti-talks faction of NDFB, led by Songbijit Ingti Kathar, has killed more than 70 Adivasi tribals in three districts of Assam in the last four days.
NDFB traces its origin to Bodo Security Force, a militant group formed in 1986. The current name NDFB was adopted in 1994. NDFB was first banned on November 23, 2002.
It suffered a major split in 2008 when founder chairman Ranjan Daimary went ahead with serial blasts, prompting secretary Gobinda Basumatary to constitute NDFB (Progressive).
Songbijit in 2009 fell out with the outfit's top leadership and floated NDFB(S), now the most dreaded faction.
Meanwhile, the Centre today extended the Suspension of Operations (SoO) agreement with NDFB (Progressive) for six months till June 30, 2015.
This followed tripartite talks with the representatives of NDFB (P) held on December 22, 2014. The meeting was attended by officials of Assam government and the Home Ministry.

NDB(S) militants exchange fire with SSB personnel
NDFB-Songbijit militants lobbed a grenade at SSB personnel and exchanged fire with them in Assam's Chirang district along the Indo-Bhutan border on Friday, police said.
None was injured in the encounter, the police said.
The insurgents hurled the grenade at an SSB patrol at Phoisana Bazar area under Bijni sub-division and traded fire with them before fleeing into the nearby thick jungles, they said.
CRPF personnel from nearby Panbari camp rushed to the site and jointly launched an operation with Sashastra Seema Bal to trace the fleeing extremists.
Meanwhile, Jharkhand's former Chief Minister Babulal Marandi arrived here today to meet the people affected in the NDFB-S carnage in the district and neighbouring Kokrajhar district.
Talking to reporters, Marandi alleged the "failure of Assam government led to the violence."
Demanding security to the people and that the army stop NDFB-S activities, he wanted the violence-affected people sheltered in relief camps be provided with food, clothes, medicines and other essential items.
State Welfare minister Akon Boroa visited the district today and assured the inmates in the relief camps of food and other essential goods.
At least 81 people were killed in attacks by NDFB-S and retaliatory violence in Assam's Kokrajhar, Sonitpur and Chirang districts since December 23.

Latest News from India News Desk