Arunachal Pradesh is now the 14th state having a coalition government. PPA government is a constituent partner of the North East Democratic Alliance.
He said the decision to join the PPA was "conscious and unanimous".
The 44 legislators, including Arunachal Pradesh Chief Minister Pema Khandu, who deserted the Congress party on Friday and joined the People's Party of Arunachal are set to form a new government with the support of the Bharatiya Janata Party-led North East Democratic Alliance.
The MNF came to power in the state winning 26 of the 40 seats in the state assembly uprooting the Congress from its last bastion in the Northeast.
The Centre has summoned to New Delhi the chief secretaries and directors general of police (DGPs) of Assam and Mizoram for a meeting on Wednesday while the restive inter-state border was calm, a day after armed clashes left six dead and over 50 injured, officials said.
A direct contest between nominees of the BJP-led NDA and Congress-headed Grand Alliance is on the cards in 20 constituencies
The four MLAs, accompanied by Sangma and BJP's trouble-shooter and Assam minister Himanta Biswa Sarma, visited the Raj Bhavan in the afternoon to submit letter of support to the BJP-led government.
In line with exit poll predictions, the Bharatiya Janata Party has taken an early lead in Uttar Pradesh, after one hour of counting.
The BJP needs to win maximum number of seats from northeast to strengthen Prime Minister Narendra Modi so that development of the region continues.
Results show that the BJP has fared poorly in rural regions, underlining the need for the party to challenge issues like farm distress and unemployment.
Shah also said that no 'illegal migrant' will be allowed to stay in the country and that the National Register of Citizens exercise in Assam was completed in 'time-bound manner'.
Labelling All India United Democratic Front chief Badruddin Ajmal as the 'enemy of Assam', state minister Himanta Biswa Sarma on Sunday asserted that he is an extremist in protecting Indian and the Assamese culture.
The party maintained that it will respond to the apex court's judgement after studying its order in detail and claimed the verdict was not a setback to it.
The new 'Mission 350+' is to focus on 150 seats where the BJP was number two or three in 2014.
The PPA, an alliance partner of the North East Democratic Alliance government in the state, on Friday selected Takam Pario as the new chief minister of the state.
Mizoram has India's second-best health indicators and third-best literacy rate.
With this, the Congress has lost its last foothold in the north-east.
The Bharatiya Janata Party president also accused successive Congress government's of having alienated the region from the rest of the country.
The Congress party just lost power in Arunachal Pradesh once again!
The venue holds significance as the announcement of Nagaland's statehood on December 1, 1963 was made from Kohima by the then president Sarvepalli Radhakrishnan.
The eight states of the north-east account for 25 Lok Sabha seats and the ruling Bharatiya Janata Party is eying to bag those in the Parliamentary election.
'We have a situation where the BJP, with less than 2 per cent vote share, has 10 MLAs.'
The Pema Khandu government claimed support of 49 of the 60 MLAs, including 35 of Peoples' Party of Arunachal legislators
Syed Firdaus Ashraf lists seven states where the Grand Old Party suffered a severe setback.
Polling will be held between 7 am and 4 pm, except in some polling stations of the interior districts of Nagaland, where the process is scheduled to conclude at 3 pm. The two states have a 60-member House each, but voting will be held for 59 constituencies in both.
The AGP had in January withdrew its support to the BJP government in Assam in protest against the Centre's decision to go ahead with the Citizenship (Amendment) Bill.
Celebrations erupted across Assam with opponents of the bill bursting crackers, distributing sweets and breaking into frenzied dancing on the streets.
More than 750 constituencies spread across four states and one union territory will go to the polls on Tuesday
Tuki met Governor Tathagata Roy on Friday and sought the postponement of the floor test.
Modi accused the TMC of killing the aspirations of the middle-class people in the state and said the ruling party in West Bengal is known for 'triple T -- Trinamool Tolabaji Tax'.
The BJP, which has two MLAs in the MDA government, backed the Cabinet decision.
A total of 3,30,27,661 people had applied to be included in the NRC. Of them, 3,11,21,004 have been included in the document and 19,06,657 excluded.
Counting of votes is underway for four Lok Sabha and eight assembly Constituencies, spread across six states and one Union Territory where by-elections were held on Saturday.
By-elections to Lok Sabha and assembly seats in the states of Assam, Tripura, Madhya Pradesh, Arunachal Pradesh, Tamil and West Bengal passed off peacefully on Saturday amidst tight security.