"I am against BJP. Don't give a single vote to BJP. They are communal," the Trinamool Congress supremo told a party workers' meet here in Murshidabad district which has a sizeable Muslim population.
"Whenever elections come they rake up the issue of Hindutva, but don't get swayed by their designs," she said.
The BJP has fielded candidates in all 42 Lok Sabha seats in the state.
"I was in (BJP-led) NDA for a little over a year, but our party was a fledgling then, and keeping faith in Atal Behari Vajpayee that he won't do anything against minorities, I went with them," she said, explaining her earlier association with the BJP-led front.
She claimed that BJP also wanted to divide Bengal and would try the same in several parts of the state from Darjeeling hills to other districts.
"Can Congress or CPI(M) defeat BJP? Only the Trinamool Congress can," she asserted.