Maneka Gandhi will contest from Sultanpur and Varun Gandhi from Pilibhit.
Gandhi, who was here to attend the BJP's national executive, was conspicuous by his absence at the meeting of Lok Sabha MPs, which was attended by PM Modi among others.
The polling for the sixth phase on May 12 covers 6 states and one Union Territory.
Nandi had defeated, by a margin of more than 14,000 votes, Keshri Nath Tripathi who was a five-time MLA, and had served thrice as the Uttar Pradesh assembly speaker and was the BJP's state unit president at that time.
Some questions cited concerns that larger warnings can hurt tobacco farmers and boost illicit trade.
Amidst a raging controversy over remarks on smoking by a Bharatiya Janata Party MP who is a 'beedi' baron, another Member of Parliament from the party Ram Prasad Sarmah on Friday waded into the row, claiming there is no clear proof yet linking cigarette puffing and cancer while wondering whether tobacco contains "herbal medicine"
A parliamentary panel termed the government's proposed 85 per cent pictorial warnings on tobacco products as "too harsh" and recommended a drastic reduction in size.
The election commission had upped the expense limit for Lok Sabha elections from Rs 40 lakh to Rs 70 lakh per candidate in big states but a new report states that 537 MPs declared expenses of less than 50 per cent of the limit. Vicky Nanjappa/Rediff.com reports