Rukamani Devi Nishad, sister of Bandit Queen Phoolan Devi on Sunday joined the Samajwadi Party (SP) in presence of former chief minister and party president Akhilesh Yadav. Nishad quit the Pragatisheel Manav Party (PMP), a hyperlocal political outfit in Uttar Pradesh, to join hands with Akhilesh Yadav.