Who was the first British governor of India?

Lord Louis Mountbatten was the first Governor General of independent India after having overseen independence and partition of British India as the last Viceroy. He was followed by Chakeravarthi Rajagopalachari who was the first Governor General of India of Indian origin and the last Governor General as the new constitution in 1950 replaced King George VI as Emperor of India with a President and the office of Governor General thus disappeared.