Direct Answer: The fundamental difference is that Fundamental Rights (Part III, Articles 12–35) are justiciable in court and establish political democracy by limiting state power, whereas Directive Principles of State Policy (Part IV, Articles 36–51) are non-justiciable (Article 37) and guide the State to establish social and economic democracy (a Welfare State). In the landmark Minerva Mills Case (1980), the Supreme Court held that the Indian Constitution is founded on the bedrock of the balance between Part III and Part IV.
Tabular Comparison: Part III vs Part IV
| Feature |
Fundamental Rights (Part III) |
Directive Principles of State Policy (Part IV) |
| Articles & Source |
Articles 12 to 35. Borrowed from the US Constitution (Bill of Rights). |
Articles 36 to 51. Borrowed from the Irish Constitution (1937). |
| Nature |
Mostly negative injunctions (prohibits the State from doing certain actions against citizens). |
Positive commands (urges the State to enact progressive socio-economic measures). |
| Justiciability |
Justiciable: Citizens can directly approach the Supreme Court (Art. 32) or High Courts (Art. 226) if violated. |
Non-justiciable (Article 37): Cannot be enforced by any court, though fundamental in the governance of the country. |
| Objective |
Establishes political democracy and civil liberties. |
Establishes social and economic democracy and creates a Welfare State. |
| Sanction |
Backed by legal sanctions and judicial power. |
Backed by political and moral sanctions (electoral accountability). |
| Suspension |
Can be suspended during National Emergency under Article 352 (except Articles 20 and 21). |
Cannot be suspended as they are guiding duties for state policy. |
Judicial Harmonization & Evolution
- Champakam Dorairajan Case (1951): Supreme Court held that in case of conflict, Fundamental Rights prevail over DPSPs.
- Golaknath Case (1967): Fundamental Rights were declared transcendental and sacrosanct; Parliament could not abridge them to implement DPSPs.
- 25th Constitutional Amendment Act (1971): Inserted Article 31C, providing that laws enacted to give effect to Article 39(b) and 39(c) (distribution of material resources and prevention of wealth concentration) cannot be declared void on grounds of violating Articles 14 and 19.
- Minerva Mills Case (1980): The Supreme Court established the definitive constitutional doctrine: "To give absolute primacy to one over the other is to disturb the harmony of the Constitution. Part III and Part IV together constitute the core of our commitment to social revolution."