Forty three years ago, on June 25, 1975, then Prime Minister Indira Gandhi fastens a national emergency.That's been termed in the history of the nation the darkest day- black day of Indian democracy which was the third national emergency.

 On a related note first one was in 1962 when China attacked India. The second one was in 1971 during the war with Pakistan.

During the 1975 emergency opposition leaders were detained, elections delayed, anti-government protests troddened and press censored to publish any statements. Some laws were redrafted to go well with the government.

 Congress party had an absolute majority in both Rajya Sabha and Lok Sabha (352 of 523 seats) in 1971 but after imposing emergency it got only 153 seats. The then government lacks the numbers in Rajya Sabha.

Regional parties have a strapping presence in several states, that wasn't the case in 1975 as States are also more self-governing than earlier in terms of financially and politically.

Judiciary system isn't as pliable to government as it was in 1975 when right to life and liberty was hanged.

On a related note Article 352 that gives emergency powers to the President has more legal defends now and now days It's not so easy to have power over flow of information because of social media and connectivity

Today India is more connected to the globe than it was 43 years ago and worldwide pressure can be a restrain.