Onam is an astronomical event that occures once in every year when the Moon transits to "Thiruvonam" star(280 - 293°)in Capricornus constellation while the Sun is in Leo(120 - 150°). As the angle difference between the Sun and the Moon is 160 - 180°, moonlight nights are assured during Onam season. During this day, it is believed that Mahabhali, the King of bye gone era visits Kerala to witness happiness and prosperity of his erstwhile kingdom. See the traditional Ona Sadya items served in a plantain leaf which reflects prosperity. Let happiness and prosperity be with you all through out this season.