What happen when the use of English as a official language stops?

According to the Constitution, the use of English for official purposes was to stop in 1965. However, many non- Hindi speaking States demanded that the use of English continue. In Tamil Nadu, this movement took a violent form. The Central Government responded by agreeing to continue the use of English along with Hindi for official purposes. Many critics think that this solution favoured the English- speaking elite. Promotion of Hindi continues to be the official policy of the Government of India. Central Government can impose Hindi on States where people speak a different language. The flexibility shown by Indian political leaders helped our country avoid the kind of situation that Sri Lanka finds itself in.