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 ReadDominica To Award Its Highest National Honour To PM ModiDisplay Names, Phone Numbers: Vendors At Delhi's Najafgarh Vegetable Market ToldPM Modi To Visit Nigeria, Guyana, And Brazil For G20 Summit, Next Week