Explanation

Lord Mountbatten had the shortest duration, from March 22 to August 15, 1947.

He was the last viceroy

Lord Mountbatten through "The Indian Independence Act of 1947"

This plan is known as the 3 June Plan or Mountbatten Plan.

This plan was the last plan for independence.

Additional information

Lord Linlithgow was longest reign as Viceroy of India.

Lord Canning

Warren Hastings was the first governor-general of india.