The fort complex in Bidar famed for its water management system:

Bidar Fort
Belgaum Fort
Chitradurga Fort
Gulbarga Fort

The correct answer is A) Bidar Fort.

Bidar Fort is a 15th-century fort complex in the city of Bidar, Karnataka, India. It was built by the Bahmani Sultanate in the 15th century and is one of the largest forts in India. The fort is famed for its water management system, which includes a series of wells, cisterns, and canals that provide water to the fort complex.

Belgaum Fort is a 16th-century fort complex in the city of Belgaum, Karnataka, India. It was built by the Adilshahi Sultanate in the 16th century and is one of the largest forts in India. The fort is not famed for its water management system.

Chitradurga Fort is a 16th-century fort complex in the city of Chitradurga, Karnataka, India. It was built by the Chalukya dynasty in the 16th century and is one of the largest forts in India. The fort is not famed for its water management system.

Gulbarga Fort is a 14th-century fort complex in the city of Gulbarga, Karnataka, India. It was built by the Tughlaq dynasty in the 14th century and is one of the largest forts in India. The fort is not famed for its water management system.