Modi, who shared the stage with foe-turned-friend Ram Vilas Paswan, called Nitish a hypocrite. (JPN/Agencies)
“There are leaders who would be comfortable sitting with me in a room but would feel nervous about sharing a stage in the public,” said Modi.
“People pardon your mistakes but not hypocrisy,” he added.
"One headed by us is looking for a solution to country's problems while the other is searching for a solution to stop Modi," the BJP's prime ministerial candidate said.
Praising Paswan, Modi said he had remained courteous to him in personal meetings and did not shy away from being photographed with him despite their ideological differences.
The Gujarat Chief Minister also touched on the terror blasts that took place during his rally in Patna in October last year.
“The border (Bihar's) with Nepal is a cause for concern. Bihar has become a haven for terrorists due to vote bank politics of the government. It has not adopted tough policies against them to appease some people," he said.
“You may not like Modi or BJP but those who died in the blasts were also from Bihar,” he said.
"Those indulging in the politics of vote bank do not understand this ideology... sooner we get rid of such people, the better it is,” Modi said.
"Hunkar rally is not to show others in poor light, but to work for rights and for the good of the country and to replace a defunct leadership," Modi said.
"The NDA is only going to swell and the worries of others are going to swell too. They used to call BJP a party of ‘brahmins’ and ‘banias’. They are astonished that a backward boy is the PM nominee," he said.
Paswan, who had quit the NDA in 2002 after the Gujarat riots, said there is a wave in favour of Modi which will take him to the seat of power.
"Modi was born in a poor family who says he has been a victim of political untouchability... He is going to wear a crown of thorns. I hope no community will say a year later that Modi is not their leader," he said.
Modi, who shared the stage with foe-turned-friend Ram Vilas Paswan, called Nitish a hypocrite.