"It is a phenomenal performance by BJP. The Congress has been trounced in three out of the four states. They could not even save their government in Delhi," Sena spokesperson Sanjay Raut told PTI.
Calling it a failure of the "Gandhi family", he said that Congress had been wiped out in Rajasthan.
Raut also said that Madhya Pradesh Chief Minister Shivraj Singh Chouhan's style of functioning helped him retain the power.
He also credited BJP's prime ministerial candidate Narendra Modi for campaigning hard for the party.