Uttar Pradesh's Mughalsarai station turned a platform for political battle today as BJP chief Amit Shah took on the Congress over Assam citizens' list and accused its chief Rahul Gandhi of silence on the issue. At a function to rename the station after BJP ideologue Deen Dayal Uphadyay, Amit Shah also said the people of Uttar Pradesh want illegal migrants out - lending support to calls for a citizens' register from the party's Delhi and Bengal chief.