The four main ideals written in the Preamble of the Indian Constitution are given below:
1. Justice: Every citizen of India will have social, economic and political justice.
2. Liberty: Every citizen will have the liberty of thought, expression, belief, faith and worship.
3. Equality: Every citizen will be provided with the equality of status and of opportunity.
4. Fraternity: All the citizens of India have been assured about the dignity of the individual and the unity and integrity of the nation.