The British district of Malabar was formed in:

The correct answer is: B) 1792

The British district of Malabar was formed in 1792, after the Third Anglo-Mysore War. The war was fought between the British East India Company and the Kingdom of Mysore, which was ruled by Tipu Sultan. The British were victorious, and as a result, they gained control of the Malabar region. The district of Malabar was formed from the territories that the British had captured from Mysore.

The other options are incorrect:

• Option A: 1766 is the year in which the British East India Company acquired the town of Tellicherry from the Dutch East India Company.
• Option C: 1800 is the year in which the British East India Company acquired the town of Cannanore from the French East India Company.
• Option D: 1857 is the year in which the Indian Rebellion, also known as the Sepoy Mutiny, began.