The Indian constitution adopted in 1950 envisaged that Hindi would be gradually phased in to replace English over a fifteen - year period .
The Indian constitution adopted in 1950 gave Parliament the power to , by law , provide for the continued use of English even thereafter .
The Indian constitution adopted in 1950 envisaged that Hindi would be gradually phased in to replace English over a fifteen - year period , but gave Parliament the power to , by law , provide for the continued use of English even thereafter .