Demanding for the extension of a high profile train like Sampoorna Kranti despite knowing the fact that it ain't gonna happen is nothing but a political gimmick.
If he really intends to do something better then he should ask for a new train from MFP/DBG to Delhi via DDU-ALD-CNB with a decent timetable. Since DFC is nearing its completion, freight traffic won't be an excuse to dismiss his demand.