A senior National People's Party (NPP) MLA and several others political leaders joined the Congress in Arunachal Pradesh Tuesday.
Tanga Byaling won from Nacho Assembly seat in Upper Subansiri district of the BJP-ruled state for five consecutive terms.
Former Konsa West MLA Yumsen Mate and six other political leaders also joined the Congress.
Lok Sabha and Assembly polls will be held in the state on April 11.
Announcing that many more are waiting to join the party, state Congress president Takam Sanjoy claimed that the party will win the Assembly and Lok Sabha elections in the state.
He said the Congress would consider poll alliance in a few seats with parties like the Janata Dal (Secular) and People's Party of Arunachal.