Rana had been the state president of both RJD and JDU in past and joined the BJP sometime ago.
"Our old socialist friend Rana has come back to RJD who has earlier gone to BJP. He has deserted BJP now and come back to us saying that its a homecoming for him and he will never leave RJD again," RJD Chief Lalu Prasad told PTI.
Prasad said that RJD has started an intense membership drive in the state and is "determined to root" out BJP from the state.
The decision to make old warhorse Rana the convenor of the RJD's membership campaign was taken after a meeting attended by all senior leaders including Annapurna Devi, Sanjay Yadav and others, said Rajya Sabha MP from Jharkhand Prem Chand Gupta.