1965. Last time when massive student protests shook the state. A few set themselves on fire, a few were killed in police firing, besides there was widespread damage to public property. It was a stir against the move to make Hindi the sole official language of the nation. The switch would have placed the non-Hindi-speaking at a distinct disadvantage, hence the overwhelming support. The state was never the same thereafter. The DMK rode to power two years later, and the Congress was permanently reduced to a bit player.