The last viceroy (and governor-general) of (British) India was Mountbatten. The first governor-general (but not viceroy) of (Union of) India was also Mountbatten while the last was C. Rajagopalachari.
The Sanskrit word guru (गुरु) and the English word, grave, are both said to descend from the same Proto-Indo-European base, *gru-, meaning heavy or weighty.