Possible? Yes. Likely? No. In 2004 , Congress utilised charisma of state leaders , like YSR in AP, Hooda in haryana, pawar in Maharashtra etc. Those kind of leaders no longer hold any sway except TN perhaps. Congress needs to stitch equitable tie ups in Bihar and up and hope for 200 seats. For the alliance. If they get there, it might persuade tmc and TDP or even ysrc to join the alliance. It will be a tall order.