The Mehregan Festival is observed in Tajikistan every third Sunday of October, celebrating the autumn harvest. This festival has its origins in an ancient Zoroastrian and Persian tradition, honoring the divinity Mithra, associated with friendship and truth. Customs include wearing festive clothing, exchanging gifts, and hosting feasts, with a traditional table adorned with a red cloth featuring items such as candles, sweets, spices, and a copy of the Zoroastrian text Khordeh Avesta. The festival was officially revived in 1995 and became a national holiday in 2009. Celebrations include agricultural exhibitions, particularly in Dushanbe, where local farmers showcase their crops, and visitors can purchase fruits, vegetables, and enjoy traditional dishes alongside folk arts and cultural performances. Tajikistan uniquely celebrates all four ancient Persian seasonal festivals, including Nowruz, Mehregan, Tirgan, and Sadeh.