The Samajwadi Party-Congress alliance which was promising to alter the political equations for Assembly polls in Uttar Pradesh is in trouble. Hectic negotiations for the last few days hit a wall on Friday when both sides, off the record, called the other's demand for more seats unreasonable. Amidst building tension, Chief Minister Akhilesh Yadav started talks with Congress leaders through back channels to iron out the differences since Saturday morning.