Explanation:

• 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.