Explanation:

In India, a motion of no confidence can be introduced only in the Lok Sabha (the lower house of the Parliament of India). The motion is admitted for discussion when a minimum of 50 members of the house support the motion (under rule 198 of Lok Sabha Rules 16th edition). If the motion carries, the House debates and votes on the motion. If a majority of the members of the house vote in favour of the motion, the motion is passed and the Government is bound to vacate the office. Acharya Kripalani moved the first-ever no confidence motion on the floor of the Lok Sabha in August 1963, immediately after the disastrous India–China War. As of July 2019, 27 no-confidence motions have been moved. Prime Minister Indira Gandhi faced the most no confidence motions, fifteen, followed by Lal Bahadur Shastri and P. V. Narasimha Rao (three each), Morarji Desai (two) and Jawaharlal Nehru, Rajiv Gandhi, Atal Bihari Vajpayee, Narendra Modi (one each). Atal Bihari Vajpayee lost the no confidence motion by a margin of 1 vote (269-270) in April 1999.Prime Minister Desai resigned on 12 July 1979.