Concept:
Article 75 deals with the appointment and responsibility of the Ministers. It establishes the "Doctrine of Pleasure" in the Indian Executive.
Step 1: Understanding Collective vs. Individual Responsibility.
Collectively, the Ministers are responsible to the Lok Sabha.
However, individually, their legal tenure is tied to the Executive Head.
Step 2: Identifying the Constitutional Provision.
Article 75(2) states that Ministers hold office during the
pleasure of the President.
While the President acts on the advice of the PM, the legal "Pleasure" belongs to the President.