BJP alleges graft in Vadra deals, faces spirited attack from Priyanka

"Let them do more such smear campaigns. I will not keep quiet. I will keep raising my voice against their negative, destructive and shameful politics," she said after an election rally.

"Let them attack more. I will not remain quiet," she said.

In her addresses, she targeted BJP prime ministerial candidate Narendra Modi, saying his party represented a kind of politics which aimed at concentrating power in one person, while in an indirect jibe at Modi, quipped India does not need a "56-inch chest" for good governance.

Maken said the allegations levelled by the BJP were "old and baseless" and had been regurgitated during election time "as a cheap political stunt."

The BJP's attack Sunday came amid concerted Congress criticism of Modi over his Gujarat model of development, and two days ahead of the April 30 polling for 89 Lok Sabha seats, including all 26 seats in Gujarat.