Upbeat at the massive turn-out of people at a rally in Patna on Sunday, Rashtriya Janata Dal (RJD) leader and Railway Minister Lalu Prasad and his wife Rabri Devi challenged Chief Minister Nitish Kumar to hold mid-term polls in Bihar.

The RJD leader said he would "hit his ball off the stadium for a six", indicating he was ready to uproot the NDA and wrestle power from it in the state.

Lalu in his address in chaste Hindi amid applauds from the massive turnout at the historic Gandhi maidan said the Nitish Kumar-led government's days were numbered and  it would collapse on its own soon.

"Nitish Kumar has become chief minister accidentally and his government will fall soon," Lalu said at Chetawani rally.

Lalu targeted Nitish Kumar by using cricket references.

"Nitish Kumar dreams of getting me out on zero will never realise.  I will hit his ball so hard out of stadium  that no one would be able to find it," Lalu said in reference to Nitish Kumar statement last week that Lalu would be out on zero if elections were held now.

Lalu's wife and former Bihar chief minister and leader of opposition Rabri Devi challenged chief minister Nitish Kumar to dissolve the state assembly and hold fresh assembly polls.

Lalu Prasad Yadav also gave a clarion call to people to uproot the anti-poor government for its failures. Lalu's rally in Patna on Sunday was the first after he was ousted from power in 2005. He had organised several rallies when he was in power in Bihar from 1990 to 2005.

"This massive gathering of  people from all walks of life has broken the record of  my previous rallies," Lalu said.

The RJD, on its part, has made every effort to ensure a large gathering. It booked 35 special trains and hundreds of light and heavy motor vehicles to ferry people from across the state and neighbouring areas to Patna.

Party activists and supporters have literally painted Patna green - the colour of the party.