The concept of a 'Welfare State' in the Indian Constitution is primarily enshrined in the Directive Principles of State Policy, which are outlined in Part IV of the Constitution. These principles aim to guide the state in promoting social and economic justice, ensuring adequate living standards, and fostering the well-being of citizens, thereby laying a foundational framework for the state’s responsibility to provide welfare and support to its populace. In the context of UPSC Prelims, understanding the Directive Principles is crucial as they reflect the socio-economic objectives that the government aspires to achieve, distinguishing them from justiciable Fundamental Rights, and thus emphasizing the broader vision of a just society envisioned by the framers of the Constitution.