Sources of the Indian Constitution are:

1. The Government of India Act of 1935 – Federal Scheme, Office of the Governor, Judiciary, Public Service Commissions, Emergency Provisions and Administrative Details.

2. British Constitution – Parliamentary Government, Rule of Law, Legislative Procedure, Single Citizenship, Cabinet System, Prerogative Writs, Parliamentary Privileges and Bicameralism.

3. US Constitution – Fundamental Rights, Independence of Judiciary, Judicial Review, Impeachment of the President, Removal of Supreme Court and High Court Judges and Post of Vice-President.

4. Irish Constitution – Directive Principles of State Policy, Nomination of Members to the Rajya Sabha and Method of Election of President.

5. Canadian Constitution – Federation with a Strong Centre, Vesting of Residuary Powers in the Centre, Appointment of State Governors by the Centre and Advisory Jurisdiction of the Supreme Court.

6. Australian Constitution – Concurrent List, Freedom of Trade, Commerce and Intercourse, and Joint Sitting of the Two Houses of Parliament.

7. Weimar Constitution of Germany – Suspension of Fundamental Rights during Emergency.

8. Soviet Constitution – Fundamental Duties and the Ideal of Justice (Social, Economic and Political) in the Preamble.

9. French Constitution – Republic and the Ideals of Liberty, Equality and Fraternity in the Preamble.

10. South African Constitution – Procedure for Amendment of the Constitution and Election of the Members of the Rajya Sabha.

11. Japanese Constitution – Procedure established by Law.