New Delhi: Congress president Sonia Gandhi has written letter to Delhi Chief Minister Sheila Dikshit asking for strict punishment for the guilty in the Delhi gang-rape case.Here is the full text of the letter:PromotedListen to the latest songs, only on JioSaavn.comAlso ReadMarried Couple Arrested For Duping People On Pretext Of Providing JobsDelhi Property Dealer Arrested For Raping Woman: Cops"Biggest Mistake...": KL Rahul Blasted After LSG Lose To DC To Be On Brink Of IPL Elimination