Indian AchieversLargestRecorder holder M Ramya Muthu made biggest letter cover By IABOR Team - March 27, 2017 0 328 FacebookTwitterPinterestWhatsApp M Ramya Muthu  (Jul 14, 1999)  from Ramanathapuram, Tamilnadu, have made a record by making  biggest letter cover of 12 feet length and 5 feet width on Feb 13, 2017 at Ramanathapuram.