The BJP today released a letter written by Dr Manmohan Singh in 2002 opposing Foreign Direct Investment in retail.Dr Manmohan Singh LetterPromotedListen to the latest songs, only on JioSaavn.comAlso Read"Had Courage To Speak Truth To Power": Manmohan Singh's Ratan Tata TributeCourt Questions Officials Over File Signed By Manmohan Singh On Jama Masjid'Pray For His Long Life': PM Modi, Other Leaders Wish Manmohan Singh As He Turns 92