KOLKATA: During the high-decibel poll campaigning ahead of the fourth phase of the ongoing Lok Sabha elections, Prime Minister Narendra Modi on Wednesday took a dig at the opposition leaders, saying there is a race among them to become prime minister, for which they are all decked up.

The prime minister, who was addressing a poll rally in Birbhum district of West Bengal, said anybody whose party is contesting even 20-25 seats, wants to become the prime minister.

"Sab ghungroo bandhke taiyar ho gaye (everybody is decked up to take the hot seat)," he said, mocking them.

On Tuesday, Modi mocked TMC chief Mamata Banerjee for her prime ministerial aspirations and said she would have bought the post with the money looted from chit fund scams had it been up for auction. Modi said he feels "pity" for Banerjee as the PMs post can never be brought by money looted in Saradha and Naradha scams.

"To become the PM of a vast country like India a person has to earn the respect and blessings of its 130 crore people," he said at a poll rally Asansol.

"By fighting in just a handful of seats, Didi (Banerjee) is dreaming of becoming a prime minister. If the post of the prime minister could be bought in auctions, then Congress and Didi wouldve bought it with the money they've looted from the country.

"Didi, the prime minister's post is not available for auction that you can buy it with the money earned in Saradha, Narada (scams)," Modi said.

Banerjee, one of the most strident critics of the BJP, has been saying that Bengal and Trinamool Congress(TMC) will play an important role in the formation of the next government at the Centre. She had also organised a rally of opposition parties in Kolkata in January.