New Delhi: Senior Congress leader Digvijaya Singh has written an open letter to anti-corruption crusader Anna Hazare. Here's the full text of the letter:PromotedListen to the latest songs, only on JioSaavn.comAlso Read"Learn From Your Father": Digvijaya Singh Cautions Shivraj Chouhan's SonShashi Tharoor To Head Standing Committee On External AffairsAdvised Arvind Kejriwal Not To Enter Politics, He Didn't Listen: Anna Hazare