While senior party leader Ashok Gehlot and state Congress chief Sachin Pilot were in the race for the post of chief minister in Rajasthan, the contenders for the top post in Chhattisgarh are T S Singh Deo, veteran party leader Charan Das Mahant, state party president Bhupesh Baghel and OBC leader Tamradhwaj Sahu.
In Madhya Pradesh, state Congress chief Kamal Nath and senior leader Jyotiraditya Scindia are vying for chief ministership.
Gandhi also said that the party effectively "ironed out" tensions among the leaders within the party in various states ahead of the elections.
He also said that all the leaders worked unitedly which helped the party emerged victorious in three Hindi heartland states.
"This victory is of the Congress party's workers, farmers and the youth and small traders. There is a big responsibility on the Congress party now," he said.
Rahul also said he learnt a lot from the massive defeat Congress suffered in 2014 Lok Sabha polls. "I was telling my mother that the absolute best thing for me was the 2014 election. I learnt a lot from that election. I learnt that the most important thing is humility," he said.