Thuk Choera, this special event is held only at Drepung Gomang monastery and it is a popular saying that when gomang's thuk choera starts, then it usually rains or starts of monsoon. Thuk Choera is an interclass debate congregation where different monastic classes debate against each other in the debate courtyard. Monk students in order to prepare or sharpen their debate or to make it difficult for the opponent class, go far away from the monastery compound in the fields with great secrecy to organise the debate. This event was held annually on the eighteenth day of the fourth month of the Tibetan Lunar Calendar.