June 25 1975 is considered to be the darkest day in Indian history as a nation wide emergency was declared
The emergency was declared by then president of India Fakhruddin Ali Ahmed while Indira Gandhi was the Prime Minister
However a national emergency has been declared thrice in India and all were under different circumstances
The first time a national emergency was declared was in 1962 and it lasted until 1968. This was during the India-China war when the security of India was declared as being threatened by external aggression
In 1971 a national emergency was declared once again during the India-Pakistan war. The president at that time was V V Giri
The third emergency was a very controversial one. It was declared in 1975 and lasted until 1977
The third emergency was controversial as it was declared due to circumstances of political instability
The third emergency was declared on the basis of internal disturbances