Addressing three rallies on the second day of his campaigning in poll-bound Maharashtra, Modi also asked voters to banish for ever the "corrupt" NCP and Congress from the state politics, accusing the ruling alliance partners of misrule for 15 years and looting the people of the state.
Notwithstanding the bitter parting just before the elections, Modi said he would "not utter a single word" against Shiv Sena out of respect for late Bal Thackeray.
"There are some things which are above politics.... There are feelings. Not everything should be linked to politics," Modi told a poll rally at Tasgaon in Sangli district of western Maharashtra.
His remarks came hours after Shiv Sena leader Aditya Thackeray attacked BJP, accusing it of "backstabbing" Bal Thackeray by snapping ties with his party over seat sharing.
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"I am amazed. Pawar was the Union Agriculture Minister. But in his Maharashtra, around 3,700 farmers commit suicide every year," he said.
"There is no chance of you (Pawar) getting Shivaji's qualities in your character," Modi said, as he invoked Chhatrapati Shivaji, Shiv Sena's biggest icon for the Maratha pride plank.
"But as agriculture minister at the Centre, had you implemented Shivaji's water management techniques, farmers of Maharashtra would not have committed suicide," the Prime Minister said at Tasgaon from where former state Home Minister R R Patil is NCP nominee.
"Stop challenging our 'Shiv bhakti'," Modi said.
"I want to ask Sharad Rao Pawar. You speak of Shivaji. It was the Vajpayee government which named Mumbai airport after Shivaji. You were Chief Minister but did not think of it. Even Victoria Terminus was named Chhatrapati Shivaji Terminus by Vajpayee government," Modi said.
At a recent rally, Pawar had said, "They never even celebrated Shiv Jayanti and suddenly they have realised the importance of Shivaji Maharaj. All this is for votes only.