Shivpal Yadav, Chief of Pragatisheel Samajwadi Party-Lohia (PSPL), is all set to contest the upcoming Lok Sabha polls from Firozabad in Uttar Pradesh.Akshay Yadav, the son of SP leader Ramgopal Yadav, is presently the Member of Lok Sabha from Firozabad parliamentary seat. Addressing a gathering here on Saturday, the PSPL chief took a jibe at Akhilesh and BSP supremo Mayawati, who entered into an alliance recently, asking how the SP Chief refers to Mayawati as "bua" (paternal aunt) when neither he nor SP patriarch Mulayam Singh Yadav ever made her their sister. The SP-BSP alliance in Uttar-Pradesh is often dubbed as "Bua-Bhatija" alliance, however, it is perceived as a formidable force to counter BJP in the upcoming elections. The alliance has kept both Congress and Shivpal Yadav-led PSPL out of its fold. "Neither Neta ji (Mulayam) had made her (Mayawati) his sister, neither had I made her my sister, then how did she become Akhilesh'sBua?" asked Shivpal.Slamming the SP-BSP alliance, ...