- Parliamentary government
- Rule of Law
- Legislative Procedure
- Single Citizenship
- Cabinet System
- Prerogative Writs
- Parliamentary Privileges
- Bicameralism
South African Constitution
Procedure for amendment of the Constitution and election of members of Rajya Sabha
Government of India Act of 1935
- Federal Scheme
- Office of governor
- Judiciary
- Public Service Commissions
- Emergency provisions and administrative details.
Procedure established by Law
Republic and the ideals of liberty, equality and fraternity in the Preamble
- Concurrent List
- Freedom of Trade, Commerce and Inter-course
- Joint Sitting of the two Houses of Parliament
Weimar Constitution of Germany
Suspension of Fundamental Rights during Emergency
- Fundamental Rights
- Independence of Judiciary
- Judicial Review
- Impeachment of the President
- Removal of Supreme Court and High Court Judges
- Post of Vice President
- Federation with a strong Centre
- Vesting of Residuary Powers in the Centre
- Appointment of state Governors by the Centre
- Advisory jurisdiction of the Supreme Court
- Directive Principles of State Policy
- Nomination of Members to Rajya Sabha
- Method of election of President.
Soviet Constitution (USSR, now Russia)
Fundamental duties and the ideal of justice (social, economic and political) in the Preamble