Former-Uttar-Pradesh-minister and president of Pragatisheel Samajwadi Party Shivpal Yadav launched a veiled attack on his brother and SP patriarch Mulayam Singh Yadav for siding with his son Akhilesh Yadav and said that he was not going to look back. Shivpal Yadav, who has never been openly critical of his brother before, said he had formed his party "only with the consent" of Mulayam Singh.