The world definitely is moving towards one language speaking so as to eliminate any barriers between them,I guess English language to be known by all will be a good option
But removing Hindi will be torturous;almost like telling remove mother and replace her with father :(
We attained independence in 1947 and our own constitution is effective from 1950. Hindi was made the official language of the center. Even in the year 2011, most of the work of Central government, some states, supreme court and elsewhere is still in English. Hence, it is appropriate that English be recognized as the only official language of center.
Hindi and any other language is not to be removed. These will continue as languages of state.
We should not be too sentimental about own or foreign language. What we adopt is ours. We wear westernized dress and celebrate functions like New Year day, eat bread, cake and pastry. We are benefited by many foreign invented products. Nothing is foreign. English is also ours. Personalities like Dr.Radha Krishnan, Pt Nehru, Raja Gopalachari, Mulk Raj Anand, Sarojani Naidu, Khushwant Singh and have enriched English with their writing.