Gandhi said a mandate was given to Kumar to counter anti-communal forces in Bihar, but he has joined hands with the latter for his personal politics. (Photo: PTI)

New Delhi: Congress Vice-President Rahul Gandhi on Thursday hit out at Bihar Chief Minister Nitish Kumar for joining hands with the Bharatiya Janata Party (BJP), alleging that he had returned to the "communal forces" for his selfish political motives.

Gandhi, whose party was part of the Grand Alliance in Bihar that was deserted by Kumar's Janata Dal (United) (JD) (U) last evening, said that he was aware that it was being planned for the last three-four months.

"He (Nitish) had joined hands with us in the anti-communal fight, but Nitish Kumar, for his personal politics, joined hands with those against whom he had fought," said a seething Gandhi.

This is the problem in India's politics, he added.

"In politics you come to know of what is going on in the minds of people. Clearly, I knew Nitish ji is planning. We knew this was going on for the last three-four months."

"People do anything for their selfish motives. There is no principle, no credibility. They can do anything for power," he said when asked about the developments in Bihar.