Rita Bahuguna Joshi had fought the 2017 elections and defeated Aparna Yadav, the then SP candidate from Lucknow Cantonment.
According to sources, Aparna has sought a ticket from the Lucknow Cantt assembly seat.
Prateek Yadav is the son of Mulayam Singh Yadav's second wife, Sadhna Yadav. His stepbrother and former chief minister, Akhilesh Yadav, currently heads the Samajwadi Party, the main opposition in Uttar Pradesh.
With the counting for the high-stakes assembly elections is on in five states - Uttar Pradesh, Uttarakhand, Punjab, Manipur and Goa, here's a look at some of the big names and where they stand.
Yadav said she initially felt like Eklavya in the BJP family but now (with this responsibility) she hopes to work like Arjuna.
The SP candidates in these seats include Mulayam Singh Yadav's daughter-in-law Aparna Yadav and three ministers, one of whom was recently sacked.
Samajwadi Party patriarch Mulayam Singh Yadav's daughter-in-law Aparna Yadav joined the Bharatiya Janata Party on Wednesday.
Its allies Apna Dal (S) and Suheldev Bhartiya Samaj Party bagged nine seats and four seats, respectively, taking the total tally of the combine to 325.
The Rajya Sabha elections in Uttar Pradesh on Saturday saw cross-voting by a BJP MLA while another party legislator claimed that she was prevented from voting.
An 18-year-old rape victim was on Sunday shot dead allegedly by bike-borne youths in Baijapur village in Dakshintola area, two days before she had to appear in a court as witness in the case, police said.
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.