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 ReadStudents Killed In Flooding At Delhi Coaching Centre Were UPSC Aspirants'Murder': BJP Blames Delhi Government For Death Of 3 After FloodingDelhi Police File Criminal Case Over Coaching Centre Flooding That Killed 3