Buxar Fort is a fort located in Buxar, Bihar, India. Buxar is a city in the state of Bihar in the eastern part of India bordering eastern Uttar Pradesh. It is the headquarters of Buxar District. The fort was established by King Rudra Deo in 1054 . The city is known for its cultural heritage as it is the place where Lord Rama killed the demon Taraka and also the site of Sage Vishvamaitra's Ashram.