Which of the following statement (s) is/are correct about Francis Buchanan? a) He was a physician who came to India and served in the Bengal Medical Service. b) He was a surgeon to the Governor-General of India, Lord Wellesley. c) He organized a zoo that became the Calcutta Alipore Zoo. d) He was also in charge of the Botanical Gardens for a short period.

Option a and b are correct. Option a, b, and c are correct. All the options are correct. None of the options is correct.

All the options are correct.

Francis Buchanan was a physician who came to India and served in the Bengal Medical Service (from 1794 to 1815). For a few years, he was surgeon to the Governor-General of India, Lord Wellesley. During his stay in Calcutta (present-day Kolkata), he organized a zoo that became the Calcutta Alipore Zoo; he was also in charge of the Botanical Gardens for a short period. At the request of the Government of Bengal, he undertook detailed surveys of the areas under the jurisdiction of the British East India Company.