In 2017 assembly elections, the BSP had got 23.62 percent votes in these seven constituencies.
But the biggest sufferer is Samajwadi Party despite clocking 23 per cent votes. Out of the six seats it contested, it won Malhani in Jaunur but came second in three seats of Naugaon Sadat (Amroha), Tundla (Firozabad) and Deoria. Shockingly, Samajwadi Party was pushed to third position in Bangarmau (Unnao) and fourth place in Ghatampur (Kanpur) seat. Just a few days before polling, SP had roped in former Congress MP from Unnao Annu Tandon in the party fold but this failed to give the party an impetus in Bangarmau. In 2017 assembly elections, the SP got 25.27 percent votes in these six seats, showing a decline of around 2 percent vote share in the by-elections.
The Samajwadi Party had left the seventh seat of Bulandshahr for its ally Rashtriya Lok Dal which could manage only 7286 votes. In 2017 assembly elections the party had got over 17,000 votes from this constituency, making it clear that in the bye-elections both RLD and Samajwadi Party failed to transfer their votes.