The fundamental principle underlying the working of parliamentary system of government is the principle of collective responsibility. Article 75 clearly states that the council of ministers is collectively responsible to the Lok Sabha. This means that all the ministers own joint responsibility to the Lok Sabha for all their acts of ommission and commission. They work as a team and swim or sink together. When the Lok Sabha passes a no-confidence motion against the council of ministers, all the ministers have to resign including those ministers who are from the Rajya Sabha. Alternatively, the council of ministers can advise the president to dissolve the Lok Sabha on the ground that the House does not represent the views of the electorate faithfully and call for fresh elections. The President may not oblige the council of ministers that has lost the confidence of the Lok Sabha.
The principle of collective responsibility also means that the Cabinet decisions bind all cabinet ministers (and other ministers) even if they differed in the cabinet meeting. It is the duty of every minister to stand by cabinet decisions and support them both within and outside the Parliament. If any minister disagrees with a cabinet decision and is not prepared to defend it, he must resign. Several ministers have resigned in the past owing to their differences with the cabinet. For example, Dr BR Ambedkar resigned because of his differences with his colleagues on the Hindu Code Bill in 1953. CD Deshmukh resigned due to his differences on the policy of reorganisation of states. Arif Mohammed resigned due to his opposition to the Muslim Women (Protection of Rights on Divorce) Act, 1986.
Article 75 also contains the principle of individual responsibility. It states that the ministers hold office during the pleasure of the president, which means that the President can remove a minister even at a time when the council of ministers enjoys the confidence of the Lok Sabha. However, the President removes a minister only on the advice of the Prime Minister. In case of a difference of opinion or dissatisfaction with the performance of a minister, the Prime Minister can ask him to resign or advice the President to dismiss him. By exercising this power, the Prime Minister can ensure the realisation of the rule of collective responsibility.