Deo Surya Mandir is a famous Sun Temple located in Deo town of Aurangabad district, Bihar. It is one of the most important temples dedicated to Lord Surya in eastern India. The temple attracts thousands of devotees, especially during the Chhath Puja festival, when special rituals are performed with great devotion. Deo Surya Mandir is believed to fulfill the wishes of devotees who worship the Sun God with faith. The temple complex reflects traditional religious architecture and a vibrant spiritual atmosphere. Pilgrims from Bihar, Jharkhand, and nearby states visit the temple regularly. The surroundings become highly festive during major solar events and religious occasions. Deo Surya Mandir continues to be a major center of Sun worship and religious tradition in Bihar.