The Congress returned to power in Haryana on Sunday winning 67 seats in the 90-member assembly.
The Bharatiya Janata Party-Janata Dal (United) alliance emerged as the largest unit in Bihar, winning surged ahead in Bihar winning 91 of the 243 seats in the assembly and serving a major blow to Lalu Prasad's Rashtriya Janata Dal.
The RJD and its allies won 78 seats. It was Ramvilas Paswan, whose Lok Janshakti Party won 28 seats, who emerged as the kingmaker in the state.
Cong secures majority in Haryana | BJP willing to support Paswan: Jaitley
Ten years after it lost power, the Congress rode on an anti-incumbency wave to dislodge the ruling Indian National Lok Dal in Haryana.
Chief Minister Om Prakash Chautala suffered the ignominy of losing to state Congress working president Randip Singh Surjewala in Narwana.
My party will sit in opposition: Paswan | Trying to unravel Puzzle Lalu
However, he won from Rorhi. His party managed to win only 9 seats. INLD's erstwhile partner BJP managed to get only two seats.
He has put in his resignation as chief minister.
In the fiercely fought elections in Bihar, the LJP emerged a key player in the government formation winning 29 seats.
The LJP's alliance partner, the Congress, which also had seat adjustments with the RJD, won 11 seats.
Bhai, I am very happy: Bhajan Lal
Being wooed by the NDA and secular parties, Paswan made it clear that he would not have any truck with either RJD or the NDA in its "present shape".
He said that President's Rule was the best option in the present circumstances.
In Jharkhand, NDA took the lead again with 37 seats; The Congress-Jharkhand Mukti Morcha combine got 26 and the RJD 7.
Chief Minister Arjun Munda asserted that the BJP combine being just 4 short of majority, it would form the government in Jharkhand.