Which one of the following is NOT an essential of parliamentary form of government?

Correct option is D

While formally the President appoints ministers and allocates portfolios, this is done only on the advice of the Prime Minister under Article 75(1) of the Constitution. Thus, this does not reflect the core essence of a parliamentary system. What’s essential are:
· Nominal head
· Real executive (Council of Ministers)
· Collective responsibility
· Majority support in the legislature
Therefore, (d) is a formal procedural aspect, not a defining feature.
Information Booster:
· The Indian model follows the Westminster parliamentary system.
· Key constitutional provisions: Article 74 (Council of Ministers), Article 75 (PM and Ministers), Article 53 (Executive power).