Union Home Minister Rajnath Singh's Lok Sabha constituency Lucknow, and SP strongholds Kannauj, Mainpuri and Etawah, figure in this round.
Farrukhabad, Hardoi, Auraiya, Kanpur Dehat, Kanpur, Unnao, Barabanki and Sitapur are among the 12 districts where these Assembly seats are spread across.
Etawah is the native place of SP patron Mulayam Singh Yadav, while another key district is Mainpuri, from where Tej Pratap Yadav is an SP MP. From Kannauj Dimple Yadav, wife of Chief Minister Akhilesh Yadav is MP.
In the 2012 Assembly polls, SP had won 55 of these 69 seats, while BSP, BJP and Congress secured just six, five and two respectively. One seat went to an Independent.
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In this phase, the maximum number of 4,98,573 voters are in Sarojini Nagar seat of Lucknow, while the minimum of 2,72,294 voters are in Sisamau.
While the highest number of 21 candidates are in Etawah, minimum of three candidates are in Haidergarh (Barabanki).
Lucknow West and Central have 17 candidates each.
For free and fair polling, the Election Commission has
appointed 4,609 micro-observers and 61 general observers and deployed over 83,000 personnel of central para-military forces.
There are 1,707 sector magistrates, 200 zonal and 271 static magistrates to to ensure peace.
Prominent among those whose prestige is at stake are Nitin Agarwal, son of SP leader Naresh Agarwal, BSP turncoat Brijesh Pathak from Lucknow (Central) on BJP ticket and Congress turncoat Rita Bahuguna Joshi from Lucknow Cantt, who is pitted against Mulayam Singh Yadav's daughter-in-law Aparna.
SP leader Shivpal too is a key figure in this round. He is contesting from Jaswant Nagar seat.
Congress leader PL Punia's son Tanuj Punia is trying his luck from Jaidpur seat in Barabanki.
The next four phases of polling will be held on February 23, 27 and on March 4 and 8. Counting of votes will take place on March 11.