What are the key features of the Constitution of India? Why is it still relevant, even though it was written more than seventy years ago?

The Constitution of India includes several important features that keep it relevant:

• Fundamental Rights - These protect individual freedoms such as equality before the law, freedom of speech and the right to education.
• Fundamental Duties - These suggest the responsibilities of citizens, for example respecting the Constitution and protecting the environment.
• Directive Principles - These guide the government to make laws that promote social welfare, health, education and economic justice.
• It sets up a three-tier government (Central, State and Local), with a clear separation of powers so that no single body holds all authority.

It is a living document - it can be amended to meet new needs; for example, rights like the Right to Education and institutions like Panchayati Raj were added later.