Chennai: DMK chief M Karunanidhi has written a letter to PM-designate Narendra Modi lavishing praise on him for reaching the top through his "innate intelligence and hard work." PromotedListen to the latest songs, only on JioSaavn.comFollowing is the full text of his letter: Also ReadBJP "Totally Failed As Opposition": Ex Karnataka Minister Attacks Own PartyFor BJP And Allies, Maharashtra Seat-Sharing Hits A Math BarrierBJP Appoints New State Chief For Bihar, Rajasthan