Nehru , ( 10 October 1902 -- 2 April 1981 ) was an Indian civil servant and diplomat .
Ratan Kumar Nehru or R.K.
Ratan Kumar Nehru , ( 10 October 1902 -- 2 April 1981 ) was an Indian Ratan Kumar Nehru   and diplomat .
Ratan Kumar Nehru or R.K.