In Assam, a three day long Orchid Festival began in Dhemaji today.State Water Resources minister Mr. Rajeev Lochan Pegu inaugurated it at Dhemaji. Over 100 orchids found in Northeast have been showcased in the festival. Orchids are being used in traditional medicine for the treatment of many diseases and ailments. Photography competition, seminars, exhibitions and cultural shows will also be held as a part of the festival.