| United States of America (USA) | Fundamental Rights, Public Interest Litigation (PIL), Independence of Judiciary, Judicial Review, Pressure Groups, Impeachment of the President, Preamble, Federal Structure, Separation of Powers, Equal Protection of Law, Constitutional Government, Presidential form of government |
| Ireland | Directive Principles of State Policy (DPSP), Nomination of members to Rajya Sabha, Method of election of the President |
| South Africa | Procedure for Amendment of the Constitution, Election of members of Rajya Sabha |
| Canada | Residuary Powers, 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 |
| Germany (Weimar Constitution) | Suspension of Fundamental Rights during Emergency |
| United Kingdom (UK) | Rule of Law, Legislative Procedure, Single Citizenship, Cabinet System, Parliamentary Government, Parliamentary Privileges, Bicameralism, Prerogative Writs |
| Russia (USSR) | Fundamental Duties, Five-Year Plans, Ideal of Justice (Social, Economic and Political) in the Preamble |
| Japan | Procedure Established by Law |
| Australia | Concurrent List, Freedom of Trade, Commerce and Intercourse, Joint Sitting of the Two Houses of Parliament |
| France | Ideals of Liberty, Equality and Fraternity in the Preamble |
| Government of India Act, 1935 | Emergency Provisions, Federal Scheme, Office of Governor, Judiciary, Public Service Commissions, Administrative Details |