Chennai: In what appears to be a self-imposed exile of Congress leader Rahul Gandhi from the Tamil Nadu poll scene has made the party functionaries and candidates shell shocked but forced Chief Minister and DMK president to shoulder the INDIA Block's campaign in this crucial assembly election.Despite campaigning extensively in Assam, neighbouring Kerala and making an appearance in Puducherry, the Leader of the Opposition in the Lok Sabha, who is also the star campaigner has so far avoided Tamil Nadu. Neither his sister, Priyanka Gandhi Vadra, who is a crowd puller in the state, has stepped in this high-octane campaign. Compare this with Prime Minister Narendra Modi, who has come here at least thrice while a galaxy of BJP leaders including u...