1. The Constitution of India is a written document. It is the second lengthiest and the most comprehensive of all the written Constitution of the world.
2. The Constitution, as originally adopted, had 22 Parts, 395 Articles and 9 Schedules.
3. The Indian Constitution is partly rigid and partly flexible.
4. The Constitution declares India as a Sovereign, Democratic and Republic.
5. The Constitution established the Parliamentary form of Government both at the Centre and the States.
6. The Constitution of India is the supreme law of the country.
7. The Constitution has established India as a Socialist and Secular country.
8. The Constitution provides for single citizenship in India.
9. The Constitution declares certain fundamental rights of the individual.
10. The Constitution introduces the principle of Universal Adult Franchise.
11. The Constitution has made provision to provide an independent and impartial Judiciary. The Supreme Court acts as the guardian of the Constitution and is the highest court of appeal.
12. The Constitution has conferred on the Judiciary the power of Judicial Review.
13. The Constitution of India is federal in nature with unitary features.
14. The Constitution recognises the President as the Constitutional head of the Union.
15. The Constitution of India has provided Directive Principles of State Policy to be followed by the Government to secure a truly welfare state.
16. Although the Constitution has declared India as a Union of States but no State can declare itself separate from the Indian Union.