Centre has also declared All Tripura Tiger Force (ATTF) and its factions as unlawful associations under the Unlawful Activities (Prevention) Act (UAPA).
The Home Ministry has put a ban on these organisations for five years.
The Home Ministry said the government is of the opinion that NLFT and ATTF are unlawful associations.
It said the government is of the opinion that their activities are detrimental to the sovereignty and integrity of India.
The Ministry also said these factions have been engaging in subversive and violent activities.
Unlawful Activities (Prevention) Act was amended in August 2019 to include the provision of designating an individual as a terrorist.
Before this amendment, only organizations could be designated as terrorist organization.
