26 January - Hindi becomes the official language of India.
26 January - Anti-Hindi agitations break out in India because of which Hindi does not get "National Language" status and remains one of the 23 Official Languages of India.
2 September - Kashmir is declared an "Integral Part of India" and is not a "disputed territory", later responded by the Pakistani troops entering the Indian sector of Kashmir.
6 September-22 September - A full-scale Indo-Pakistani war is fought over Kashmir, which ends after a UN Security Council calls for a ceasefire on 20 September.
8 September - India opens two additional fronts against Pakistan.