The key features of the Indian Constitution are:

• Preamble which declares India as a Sovereign, Socialistic, Secular, Democratic, and Republic nation
• Fundamental Rights that guarantee individual liberty, equality and justice
• Directive Principles of State Policy that directs the government to work towards social welfare
• Separation of Powers among the Legislature, Executive and Judiciary
• Federal system with a division of powers between the Centre and the States
• Universal Adult Suffrage giving the right to vote to all Indian citizens over 18 years of age
• Independent Judiciary with the power of judicial review

The Indian Constitution promotes democracy in India by establishing a government that is accountable and representative of the people. The salient features of the Indian Constitution like the Fundamental Rights, the Directive Principles of State Policy, and the separation of powers are designed to ensure individual liberty, equality, and social welfare. The universal adult suffrage gives every Indian citizen the right to vote and therefore, a voice in the government. Additionally, an Independent Judiciary with the power of judicial review ensures the rule of law and ensures that the government acts in accordance with the Constitution. Overall, the Indian Constitution provides a framework that reflects the principles of democracy and protects the rights of its citizens.