Explanation

In 1872, Lord Mayo, the Viceroy of India was assassinated at Port Blair by Sher Ali.

Sher Ali was given life imprisonment at the penal settlement in Andaman Islands, when he stabbed and killed Lord Mayo.

Lord Mayo (1869-1872):

• Opening of the Rajkot College in Kathiawar and the Mayo College at Ajmer for political training of Indian princes.
• Establishment of Statistical Survey of India.
• Establishment of Department of Agriculture and Commerce.
• Introduction of state railways.