Ahead of Prime Minister Modi's tour of Tamil Nadu tomorrow in preparation for the Lok Sabha polls, he has his task cut out to try and revive the political fortunes of the BJP in a state where the party, with a negligible 3 per cent vote share, is grappling without any major ally after AIADMK snapped its ties. Both Dravidian arch-rivals, the ruling DMK with the INDIA bloc and its former ally the AIADMK, are keeping the BJP at arm's length.