In a major blow to the Samajwadi Party, senior leader and MLC Ambika Chaudhary Ambika Chaudhary joined the rival BSP on Saturday in presence of Mayawati.<br /><br />While addressing a press conference in Lucknow, Chaudhary cited infighting for his decision to part ways with the ruling party.<br /><br />Chaudhary said he was saddened by the way the SP patriarch was treated by his son and chief minister Akhilesh Yadav.