One of the biggest festivals in the country is the Thimphu Tshechu. This festival is held in the capital city for three days beginning on 10th day of the 8th month of lunar calendar. Thimphu Tshechu is witnessed by thousands of people many of which travel from neighboring Dzongkhags (districts) to attend the festivities. The actual Tshechu is preceded by days and nights of prayer and rituals to invoke the gods. Read more about Tshechu here