 As early as three years after independence , the <unk> National Council called for a boycott of Independence Day in northeast India . <unk> protests in this region intensified in the 1980s ; calls for boycotts and terrorist attacks by insurgent organisations such as the United Liberation Front of <unk> and the National Democratic Front of <unk> , marred celebrations . With increasing insurgency in <unk> and <unk> from the late 1980s , separatist protesters boycotted Independence Day there with <unk> ( strikes ) , use of black flags and by flag burning . Terrorist outfits such as <unk> @-@ e @-@ <unk> , the <unk> <unk> and the <unk> @-@ e @-@ Mohammed have issued threats , and have carried out attacks around Independence Day . <unk> of the celebration has also been advocated by insurgent <unk> rebel organisations . 
