A cursory look at the political dynamics of western UP suggest that it is the ruling Samajwadi Party (SP) which needs to work maximum to break the supremacy of the rival Bahujan Samaj Party (BSP) in the region. But it is also common knowledge that while SP president Mulayam Singh Yadav is gearing up to claim his right over the post of Prime Minister after 2014 Lok Sabha elections, his all time bete noire and BSP supremo Mayawati is getting ready to prevent him.