The correct answer is Bidar.
Bidar was a fortified city from the Bahmani Sultanate period. It was founded in 1406 by the Bahmani Sultan Ahmed Shah I. The city was built on a hilltop and surrounded by a strong wall. It had a number of palaces, mosques, and tombs. Bidar was an important center of learning and culture during the Bahmani period.
Chitradurga is a hill fort located in the Chitradurga district of Karnataka, India. It is one of the largest forts in India and is known for its strategic location and its role in the history of Karnataka. The fort was built in the 12th century by the Chalukyas and was later occupied by the Hoysalas, the Vijayanagara Empire, and the Mysore Kingdom. Chitradurga was an important center of resistance against the British East India Company in the 18th century.
Gulbarga is a city in the Gulbarga district of Karnataka, India. It was founded in 1353 by the Bahmani Sultan Muhammad bin Tughluq. Gulbarga was the capital of the Bahmani Sultanate from 1353 to 1424. The city is home to a number of historical monuments, including the Jamia Masjid, the Gol Gumbaz, and the Qutb Shahi Tombs.
Belgaum is a city in the Belgaum district of Karnataka, India. It was founded in the 12th century by the Chalukyas. Belgaum was an important center of trade and commerce during the Mughal period. The city is home to a number of historical monuments, including the Fort of Belgaum, the Jama Masjid, and the St. Mary’s Basilica.