Shakir Ali defeated the Bhartiya Janata Party (BJP) heavyweight and the state party president Surya Pratap Shahi in the assembly elections.
As a former minister, Mr Ali had been lobbying in Lucknow for a ministerial berth in the Akhilesh Yadav cabinet.
His party supporters, who had planned the welcome, also thrashed a man who they claimed was a pickpocket and had stolen the minister's wallet at the railway station.
A First Information Report has been registered against the MLA and his supporters for disrupting law and order at the railway station.
