The National Emergency in India declared by the President of India due to the external aggression or armed revolt through (1) Article-352 (2) Article-356 (3) Article-360 (4) Article-368
(1) Article-352 Explanation: Under article 352 of Constitution, the President can declare such an emergency (caused by war, external aggression or armed rebellion) only on the basis of a written request by the Council of Ministers headed by the Prime Minister. Such a proclamation must be approved by the Parliament within one month.