Goa Chief Minister Manohar Parrikar described the imposition of Emergency in 1975 as the "darkest phase in the democratic history" of India.
The Emergency was imposed on 26 June in 1975 by the then government led by Indira Gandhi.
On its the 43rd anniversary, Mr Parrikar lauded those who fought against the "atrocities" of the then Congress government.
"India saw the darkest phase in its democratic history when Indira Gandhi imposed national Emergency, the draconian act of crushing civil liberties. Salute those who fought against the atrocities unleashed by Congress government," the chief minister said in a tweet.
The BJP is holding various programmes across the country today to condemn the imposition of the Emergency in 1975.
Get the latest election news, live updates and election schedule for Lok Sabha Elections 2019 on ndtv.com/elections. Like us on Facebook or follow us on Twitter and Instagram for updates from each of the 543 parliamentary seats for the 2019 Indian general elections.