Lucknow: Mulayam Singh Yadav's younger son Prateek Yadav's wife Aparna Yadav has joined the Bharatiya Janata Party weeks ahead of the much crucial Uttar Prades Assembly Elections. As soon as Aparna Yadav joined the BJP, she took a jibe at the Samajwadi Party and said that Akhilesh Yadav has failed as the Chief Minister of Uttar Pradesh. BJP Hesitant In …