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In photos: A pesticide tragedy that haunts an Indian state

March 27, 2026 4 min read Environment & Ecology Social Issues GS Paper 3 (Environment Biodiversity) GS Paper 2 (Social Justice Vulnerable Groups)
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What Happened

  • A photographic report revisits the endosulfan pesticide tragedy in Kasargod district of Kerala, where aerial spraying of endosulfan over cashew plantations in the 1980s and 1990s caused multigenerational health devastation.
  • The victims — concentrated in 11 panchayats of Kasargod — suffer from birth defects, physical disabilities, intellectual disability, cancer, and gynaecological problems.
  • The Kerala State Health and Family Welfare Department classified 6,278 individuals as endosulfan victims, providing them financial assistance and monthly pensions.
  • Since 1995, 500 deaths have been officially recognised as endosulfan-related.
  • The Supreme Court of India directed the Kerala government in 2017 to pay ₹500 crore in compensation to over 5,000 victims.
  • Endosulfan was aerially sprayed by Kerala Plantation Corporation over state-owned cashew estates — the cumulative toxic load contaminated soil, water, and the food chain.

Static Topic Bridges

Endosulfan: Chemistry, Mechanism, and Global Ban

Endosulfan is an organochlorine insecticide and acaricide widely used to control pests such as whiteflies, aphids, and tea mosquito bugs. It belongs to the cyclodiene family of pesticides and is a persistent organic pollutant (POP).

  • Endosulfan disrupts the central nervous system by blocking GABA (gamma-aminobutyric acid) receptors, causing uncontrolled nerve firing.
  • It is a known endocrine disruptor — interfering with hormone systems and causing reproductive abnormalities.
  • Being lipophilic, it bioaccumulates in fatty tissues and biomagnifies up the food chain.
  • The Stockholm Convention on Persistent Organic Pollutants (2011) listed endosulfan in Annex A, mandating its global elimination.
  • India's Supreme Court banned the production, sale, distribution, and use of endosulfan nationally in 2011.
  • Prior to the national ban, Kerala had imposed a state ban in 2001 following a government-commissioned study.

Connection to this news: The Kasargod tragedy is the primary reason India's Supreme Court acted against endosulfan in 2011 — and it exemplifies the long-lag harm of persistent organochlorine chemicals on human communities and ecosystems.

Stockholm Convention on POPs: India's Obligations

The Stockholm Convention is an international environmental treaty targeting Persistent Organic Pollutants (POPs) — chemicals that resist environmental degradation, bioaccumulate, and pose risks of adverse effects to human health and the environment.

  • Adopted in 2001, entered into force in 2004; India ratified it in 2006.
  • POPs are listed in three annexes: Annex A (elimination), Annex B (restriction), Annex C (unintentional release reduction).
  • Original "Dirty Dozen" POPs: aldrin, dieldrin, endrin, chlordane, heptachlor, hexachlorobenzene, mirex, toxaphene, PCBs, DDT, dioxins, furans.
  • Endosulfan was added to Annex A in 2011 at COP-5 in Geneva.
  • The Basel Convention (hazardous waste) and Rotterdam Convention (prior informed consent for hazardous chemicals) work alongside Stockholm as the "chemicals trilogy."

Connection to this news: India's obligation under the Stockholm Convention reinforces the domestic ban on endosulfan — and the Kasargod case is frequently cited in international forums as evidence of the need for strict global enforcement.

India's pesticide regulation is primarily governed by the Insecticides Act, 1968 and administered by the Central Insecticides Board and Registration Committee (CIBRC) under the Ministry of Agriculture.

  • The Insecticides Act, 1968 governs registration, manufacture, sale, and use of pesticides.
  • CIBRC evaluates toxicological and environmental safety before registering a pesticide.
  • The Pesticide Management Bill (draft) — proposed to replace the 1968 Act — has been pending for years; it proposes stronger provisions for banning hazardous pesticides and compensation for victims.
  • India is one of the world's largest producers and users of pesticides; the sector is worth over ₹30,000 crore annually.
  • Several pesticides banned in the EU and US continue to be registered for use or manufacture in India, raising regulatory concerns.

Connection to this news: The Kasargod tragedy exposed a critical failure of the 1968 framework — it did not require surveillance of pesticide effects on communities near application sites, nor did it establish a compensation mechanism for victims.

Intergenerational Harm and Environmental Justice

The Kasargod case raises issues of environmental justice — the disproportionate burden of environmental hazards on marginalised, rural, and indigenous communities.

  • The affected panchayats in Kasargod include significant tribal and Dalit populations with limited political voice.
  • Intergenerational harm — health impacts passed from exposed parents to children through genetic mutations and hormonal disruption — is a defining feature of organochlorine poisoning.
  • The precautionary principle (Principle 15 of the Rio Declaration, 1992): where there is a threat of serious or irreversible damage, lack of full scientific certainty shall not be used as a reason for postponing preventive measures.
  • India's National Policy on Prevention and Control of Pollution and various environmental tribunals (NGT) are tools for addressing such harm prospectively.
  • The ₹500 crore Supreme Court compensation directive (2017) is one of India's largest environmental health reparation orders.

Connection to this news: The endosulfan victims' decades-long struggle for recognition and compensation illustrates both the limits of reactive regulation and the importance of embedding environmental justice principles into pesticide governance from the outset.

Key Facts & Data

  • Endosulfan sprayed aerially over cashew estates in Kasargod district, 1980s–1990s.
  • 11 panchayats affected; 6,278 individuals classified as victims by Kerala government.
  • 500 deaths officially recognised as endosulfan-related since 1995.
  • Supreme Court of India: national ban on endosulfan (2011); ₹500 crore compensation directed (2017).
  • Kerala state ban: 2001, following Kerala Agricultural University study.
  • Endosulfan added to Stockholm Convention Annex A at COP-5, 2011.
  • India ratified Stockholm Convention in 2006.
  • Endosulfan belongs to organochlorine family; is an endocrine disruptor and persistent organic pollutant.