Explanation:

- Article 75: This article deals with the appointment of the Prime Minister and other ministers. It specifies that ministers are appointed by the President and hold office during the President's pleasure, and it sets conditions for their salaries and duties.

- Article 101: This article pertains to disqualification and vacation of seats in Parliament. It covers how a member must not hold dual offices and the procedure for vacation and filling of parliamentary seats.

- Article 123: This article empowers the President to promulgate ordinances when Parliament is not in session. It allows the President to take immediate legislative action if necessary.

- Article 168: This article defines the structure of State Legislatures. It talks about the composition of legislative assemblies and councils in states.