The correct answer is: a) Cachar.
Cachar is a district in the Indian state of Assam. It is located in the south-eastern part of the state, bordering the states of Manipur and Mizoram to the north, Bangladesh to the east, and the districts of Karimganj and Hailakandi to the west. The district headquarters is Silchar.
Cachar was originally a part of the kingdom of Manipur. In the early 18th century, the British East India Company began to establish trading posts in the region. In 1765, the British took control of Cachar from the Manipuri king.
The British feared that the people of Cachar would rebel against their rule. In order to prevent this, the British strengthened their presence in the region. They built forts and garrisons, and stationed troops in Cachar.
The British also introduced a number of reforms in Cachar. They built roads and bridges, and established schools and hospitals. They also introduced a new system of land revenue.
The British rule in Cachar was not without its problems. There were a number of rebellions against British rule. However, the British were able to suppress these rebellions.
Cachar remained under British rule until 1947, when India gained independence. After independence, Cachar became a part of the Indian state of Assam.
The other options are incorrect because:
- Kohima is a town in the Indian state of Nagaland. It is the capital of the state.
- Sylhet is a district in the Indian state of Assam. It is located in the north-eastern part of the state, bordering the states of Meghalaya and Bangladesh to the north, and the districts of Karimganj and Cachar to the south.
- Chittagong is a city in the Chittagong Division of Bangladesh. It is the second largest city in Bangladesh, after Dhaka.