As the state is witnessing a razor sharp contest this time among SP-Congress combine, BJP and BSP, even minor changes in the vote share will translate into huge shifts in a number of seats to make or mar the electoral prospect of a party or alliance.
A cursory look at data of the Assembly and Lok Sabha elections in recent years shows that in 2007, BSP won just over 30 per cent of the votes, SP a little over 26 pc, BJP 17 pc and Congress about 8.5 pc.
BSP's vote share in 2012 fell by 4.5 percentage points compared to 2007, but the loss was immense in terms of seats as the party's tally nosedived from 206 to 80.
The political skyline in the state saw dramatic changes
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during the 2014 Lok Sabha elections when BJP's vote share of 42.6 per cent fetched the saffron party the lion's share of 71 out of 80 Lok Sabha seats -- almost 90 of the constituencies up for grabs.
On the other hand, SP had to rest content with leads in just 42 assembly segments, while BSP saw a dismal performance by remaining ahead in only nine segments.
Political analysts say if BJP drops 10 percentage points from its 2014 Lok Sabha vote share, it can still emerge as the largest party and even touch the magic mark of 202 in the 403-member House for a simple majority.
They say that with 32 per cent vote share, BJP would still be ahead of what BSP had polled in 2007 or SP in 2012.
the state.
Referring to SP's alliance with Congress, analysts say Congress with its 7-9 percent vote share in the last few elections, could help the ruling party to a great extent.
As smaller parties and castes and sub-castes play a crucial role in deciding the fate of a candidate or party, none is leaving any stone unturned to woo them to reap a bumper electoral harvest.