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.
Aparna, the younger daughter-in-law of Mulayam Singh Yadav, had joined the BJP.
Samajwadi Party founder Mulayam Singh Yadav's demise might not have any direct political impact on the party, but its president Akhilesh Yadav will now have to work without his 'shield and shadow'.
Even as Uttar Pradesh Chief Minister Akhilesh Yadav has been busy fighting his father and Samajwadi Party supremo Mulayam Singh Yadav to take control of the party, his step-brother Prateek Yadav has kept himself away from the hullaballoo and has been busy building his biceps.
The kings of the ruling family of India's heartland -- father Mulayam Singh Yadav, the Samajwadi party supremo, and son Akhilesh Yadav, the UP chief minister -- are at war. And as on any chessboard, the queens have emerged as the power centres. Meet Dimple Yadav and Aparna Yadav.
Shivpal loyalists have been denied tickets.