Snapping its 17-year-old ties with BJP, JD(U) had walked out of NDA in June last year over its opposition to the saffron outfit's move to anoint Modi as its campaign committee chairman.
"He (Modi) is not going to become prime minister. He is selling dreams. A merchant or a juggler ('madari') sells dreams, but a politician is one who talks about dreams that can be realised," Yadav said.
He, meanwhile, also slammed Modi for his comments at a rally in Kolkata that the proposed Third Front would make India a "third rate" country.
"The manner in which he (Modi) used the word 'third rate' is not done in political discourse. Neither Congress nor BJP is going to come to power (at the Centre).
"They (BJP) are now shouting from rooftops. They will just remain there," Yadav said.
