Introduction
The Indian Constitution marries formal democracy with transformative social justice through institutional innovations and fundamental rights. While Public Interest Litigation (PIL) has democratised access to justice by dismantling procedural barriers for the marginalized, the Right to Equality under Articles 14 to 18 establishes the bedrock of egalitarian governance and positive state action.
(A) Concept of Public Interest Litigation (PIL)
Introduced in the late 1970s and early 1980s under the judicial leadership of Justices P.N. Bhagwati and V.R. Krishna Iyer, Public Interest Litigation fundamentally modified the traditional legal principle of locus standi.
- Relaxation of Locus Standi: Under traditional civil jurisprudence, only an aggrieved person could petition the court. PIL permits any public-spirited individual or civil society group to approach the Supreme Court under Article 32 or High Courts under Article 226 on behalf of socially or economically disadvantaged groups unable to access the judiciary.
- Transformative and Substantive Justice: PIL transformed constitutional rights from theoretical promises into enforceable remedies, establishing judicial scrutiny over prison conditions, bonded labour, child welfare, and environmental degradation.
- Key Judicial Precedents: The landmark case Hussainara Khatoon (1979), originating from the plight of undertrials in Patna, established the right to speedy trial under Article 21 and led to the release of over 40,000 prisoners. More recently, in Gaurav Kumar v. State of Bihar (2024), the Patna High Court, acting on a PIL, struck down Bihar's 65% reservation hike to enforce the constitutional 50% ceiling under Articles 15 and 16.
(B) Guarantee of Right to Equality (Articles 14–18)
Part III of the Constitution embodies equality not merely as formal non-discrimination, but as substantive equality through affirmative intervention:
- Article 14 (Equality Before Law & Equal Protection of the Laws): Prohibits arbitrary state action and ensures reasonable classification based on an intelligible differentia with a rational nexus to the objective sought.
- Article 15 (Prohibition of Discrimination): Prohibits discrimination against any citizen on grounds only of religion, race, caste, sex, or place of birth. Crucially, Articles 15(3), 15(4), and 15(5) enable protective discrimination for women, children, and socially and educationally backward classes—operationalised, for example, by the Bihar Panchayati Raj Act (2006) which introduced 50% horizontal reservation for women in local bodies.
- Article 16 (Equality of Opportunity in Public Employment): Guarantees equal employment opportunity under the State, while Articles 16(4), 16(4A), and 16(6) allow reservations for backward classes and Economically Weaker Sections (103rd Amendment). Historical antecedents include Bihar's 1978 Karpoori Thakur formula.
- Articles 17 & 18 (Abolition of Untouchability and Titles): Article 17 completely bans untouchability in any form, providing civil rights enforcement, while Article 18 abolishes feudal and aristocratic titles to maintain a society of equals.
Conclusion
The constitutional guarantee of equality extends beyond identical treatment of unequals to mandate targeted upliftment and substantive justice within defined constitutional limits. Public Interest Litigation acts as an indispensable judicial vehicle, ensuring that these fundamental guarantees remain enforceable realities for India's most vulnerable populations.