This 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 class debates 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 prepare the debate. This event is held once every year for several days (Thuk chen) mostly starts on the 20th day of the fourth month of the Tibetan Lunar Calendar. Last year, due to Covid restrictions, the monastery was not able to conduct proper Thuk Choera.
