Stalin, the DMK working president, and Haasan took to Twitter to congratulate Rahul Gandhi, who assumed charge as Congress president with the party's central poll authority handing him over the certificate of election to the top post.
"Am confident that he (Rahul Gandhi) will fulfill the aspirations and hopes of the people and restore the glory of secularism, socialism and federalism," Stalin, whose party is an ally of the Congress, wrote on the microblogging website.
Haasan, who has been dropping hints of taking the political plunge, urged the Gandhi scion to "define" his position.
"All the strength to your shoulders," the veteran actor added.
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