The Khairagarh Feudatory State was a significant center for:

Classical music
Metalworking
Tea cultivation
Shipbuilding

The Khairagarh Feudatory State was a significant center for metalworking. It was located in the present-day state of Chhattisgarh, India. The state was founded in the 12th century by the Haihaya Rajputs. The Khairagarh rulers were patrons of the arts and sciences. They built many temples and palaces in the state. The state was also a center of metalworking. The Khairagarh rulers were skilled in the art of metalworking. They produced a variety of metal objects, including weapons, jewelry, and utensils. The Khairagarh metalwork was known for its beauty and craftsmanship. It was exported to many parts of the world.

The other options are incorrect. Classical music is a form of art that is not associated with the Khairagarh Feudatory State. Tea cultivation is a type of agriculture that is not practiced in the state. Shipbuilding is a type of industry that is not located in the state.