This fair is celebrated at a place about 6 Km from Shimla-Kotkhai road near Mahasu village on the 3rd Tuesday in the month of Baisakha(May) for two days. This festival is held in front of the Durga Devi temple by a large gathering which throngs the place from the neighbouring areas. A variety of folk dance and music enlivens the place. Archery sport is the main attraction.
Timings for Mahasu Jatar
May: