Correct Answer: (3) Khan Abdul Ghaffar Khan
Solution:Khan Abdul Ghaffar Khan, widely known as "Frontier Gandhi", became the first Non-Indian to receive the Bharat Ratna in 1987. Nelson Mandela, the President of South Africa (1994-99), was the second non-Indian to receive the award in 1990. Mother Teresa who received the award in 1980 was a naturalized Indian citizen.