The correct answer is: C. Gujarat
Nani Daman Fort is situated in the city of Daman, in the Indian state of Gujarat. It was built by the Portuguese in the 16th century and is one of the most popular tourist attractions in the region. The fort is surrounded by a moat and has a number of well-preserved buildings, including a church, a palace, and a hospital.
Option A is incorrect because Bihar is a state in eastern India.
Option B is incorrect because Maharashtra is a state in western India.
Option D is incorrect because Punjab is a state in northern India.