Here are few important features of the Indian constitution which are borrowed from other countries –

Sources	Features
Government of India Act 1935	Federal Scheme, Office of Governor, Judiciary, Public Service Commission Emergency Provisions and administrative details
British Constitution	Parliamentary government, Rule of law, Single Citizenship, Cabinet System
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
Irish Constitution	Directive principles of state policy, nomination of Rajya Sabha members, method of President election
Canadian Constitution	Federation of strong Centre
Australian Constitution	Concurrent list, Freedom of trade, Commerce and intercorse, and joint sitting of the two Houses of Parliament
Weimar Constitution of Germany	Suspension of Fundamental Rights during Emergency
French Constitution	Republic and the ideals of liberty, equality and fraternity in the Preamble
Soviet Constitution	Fundamental Duties and the ideal of justice (social, economic and political) in the Preamble
South Africa Constitution	Constitution amendment and election of Rajya Sabha members
Japanese Constitution