Which part of the Constitution of India declares the ideal of Welfare State?

Article 38(1) of the Indian Constitution mandates that the State shall strive to promote the welfare of the people by securing and protecting a social order in which justice (social, economic, and political) forms the foundation of all institutions in the nation. This article emphasizes the importance of creating a system where justice is not just theoretical but embedded in every aspect of national life, influencing policies, governance, and society as a whole.

This provision is part of the Directive Principles of State Policy (DPSP), which are guidelines for the State to follow in establishing a just society.