Chötrul Düchen, also known as Chonga Choepa or the Butter Lamp Festival was observed on 18th March, (the 15th day of Tibetan First month), is one of the four Buddhist festivals commemorating four events in the life of the Buddha, according to Tibetan traditions. Chötrul Düchen closely follows Losar, the Tibetan New Year. It takes place on the fifteenth day of the first month in the Tibetan calendar during the full moon (Bumgyur Dawa). The first fifteen days of the year celebrate the fifteen days during which the Buddha displayed miracles for his disciples so as to increase their devotion. During Chötrul Düchen ("Great Day of Miraculous Manifestations"), it is believed that the effects of both positive and negative actions are multiplied ten million times.
On the 16th day of the first month of the Tibetan Calendar, throwing the ritual cake (Torkyas) into the fire was observed at Drepung Monastery, the religious rituals were attended by the His Eminence the abbots of two monastery, discipline heads, chant masters and ritual presided by Ven. Othok Tulku Rinpoche, with a large gathering of the public in general, ritual is directed against all obstacles, negative spirits, harmful forces that would taint the coming year and for success, peace, and harmony in this world.