Kolkata: UPA's presidential candidate Pranab Mukherjee wrote a letter to Trinamool Congress chief Mamata Banerjee, seeking her support in the July 19 polls.PromotedListen to the latest songs, only on JioSaavn.comHere is the letter Mr Mukherjee wrote to Ms Banerjee:Also Read"I Am Shocked": Mamata Banerjee On Amit Shah's Ambedkar Remarks"If Pranab Mukherjee Were PM...": Mani Shankar Aiyar On Congress' 2014 Rout"Must Save Democracy": Mamata Banerjee, Opposition Slam '1 Nation, 1 Poll'