Which district of Assam is considered a major fish hub?

The correct answer is: b) Kamrup

Kamrup is a district in the Indian state of Assam. It is the largest district in Assam by area and the second most populous district in the state after Nagaon. The district is known for its fertile land, which is suitable for agriculture. It is also a major fish hub, with a large number of fish farms and fisheries.

The other options are incorrect because:

• Nagaon is a district in the Indian state of Assam. It is the second largest district in Assam by area and the third most populous district in the state after Kamrup and Dibrugarh. The district is known for its tea gardens, which are a major source of income for the people of the district.
• Dhubri is a district in the Indian state of Assam. It is the third largest district in Assam by area and the fourth most populous district in the state after Kamrup, Nagaon, and Dibrugarh. The district is known for its natural beauty, with a number of rivers and forests.
• Dibrugarh is a district in the Indian state of Assam. It is the fourth largest district in Assam by area and the fifth most populous district in the state after Kamrup, Nagaon, Dhubri, and Sonitpur. The district is known for its tea gardens, which are a major source of income for the people of the district.