Herbicide-Tolerant (HT) Bt Cotton

Herbicide-Tolerant (HT) Bt cotton is a transgenic cotton variety that combines two distinct categories of genetically engineered traits in a single plant: insect resistance derived from Bacillus thuringiensis (Bt) genes and tolerance to broad-spectrum herbicides, principally glyphosate. The Bt component expresses crystalline (Cry) proteins—Cry1Ac and Cry2Ab in Bollgard varieties—that are lethal to lepidopteran pests such as the American bollworm (Helicoverpa armigera). The herbicide-tolerance component, in the most widely circulated illegal Indian seeds, derives from the cp4-epsps gene sourced from Agrobacterium, which confers tolerance to glyphosate by producing an enzyme insensitive to the herbicide. In India, the regulatory basis for cultivating any genetically modified organism rests on the Environment (Protection) Act, 1986, and the "Rules for the Manufacture, Use, Import, Export and Storage of Hazardous Microorganisms/Genetically Engineered Organisms or Cells, 1989" (the 1989 Rules), with the Genetic Engineering Appraisal Committee (GEAC) under the Ministry of Environment, Forest and Climate Change serving as the apex approval authority.

The procedural pathway for any GM crop in India is sequential and statutorily defined. A developer first conducts contained laboratory and greenhouse research under the oversight of the Institutional Biosafety Committee (IBSC), then approaches the Review Committee on Genetic Manipulation (RCGM) housed in the Department of Biotechnology for permission to proceed to confined field trials. Biosafety data—covering toxicity, allergenicity, environmental impact, and gene flow—are then evaluated by the GEAC, which alone can grant or refuse commercial environmental release. Only one transgenic cotton lineage, Bollgard (Bt cotton MON531) and its successor Bollgard II (MON15985), has received GEAC approval, in 2002 and 2006 respectively. Critically, no HT or stacked HT-Bt cotton event has ever cleared this pathway for commercial cultivation in India; the GEAC deferred and ultimately did not approve the HT Bt cotton application of Mahyco-Monsanto Biotech, and the company withdrew its application around 2016.

Because HT Bt cotton is unapproved, its presence in Indian fields constitutes an illegal cultivation phenomenon rather than a regulated one. Unauthorised, loose-packed herbicide-tolerant seed circulates through informal supply chains, marketed to farmers seeking to reduce manual weeding costs by spraying glyphosate over a tolerant standing crop. The Field Inspection and Scientific Evaluation Committee (FISEC) constituted by the GEAC reported in 2018 that illegal HT Bt cotton was being grown across several states. The variant also raises the spectre of the terminator debate and of stacked-trait gene flow into approved Bt lines, complicating seed purity certification. India separately prohibits the use of glyphosate except through pest control operators under a 2022 notification, layering a second regulatory violation onto the cultivation of a herbicide-tolerant crop designed expressly to be sprayed with that herbicide.

By the late 2010s the scale had become a policy crisis. Estimates cited before parliamentary and ministry forums suggested that illegal HT Bt cotton occupied roughly 15 percent of India's cotton acreage in states including Maharashtra, Telangana, Andhra Pradesh, and Gujarat. In 2019, farmer activists in Akola, Maharashtra, under the banner of the Shetkari Sanghatana, publicly and deliberately sowed unapproved HT Bt cotton in a civil-disobedience campaign demanding regulatory liberalisation. The Maharashtra government and central agencies initiated enquiries, and the GEAC repeatedly issued advisories to state agriculture departments to curb illegal sale. Despite enforcement provisions under the Seeds Act, 1966, the Environment (Protection) Act, and the Cotton Seeds Price (Control) Order, prosecutions have been negligible relative to the spread.

HT Bt cotton must be distinguished from Bt cotton simpliciter, which carries only the insect-resistance trait and is legally cultivated in India, and from HT crops generally, a class that includes glyphosate-tolerant soybean, maize, and canola grown abroad. It is a "stacked-trait" or "gene-stacked" crop, distinguishing it from single-trait events. It is also distinct from the broader category of genetically modified (GM) food crops such as GM mustard (DMH-11), whose environmental release the GEAC recommended in 2022—a decision then sub judice before the Supreme Court—because cotton is a fibre and oilseed crop rather than a directly consumed food grain, which historically lowered the threshold of regulatory anxiety around its Bt predecessor.

The controversy intersects with intellectual property, federalism, and agrarian distress. Monsanto's licensing of Bollgard technology and the disputes over trait-value royalties produced litigation culminating in the Supreme Court's 2019 ruling in Monsanto Technology LLC v. Nuziveedu Seeds, which addressed patentability of the gene event under Section 3(j) of the Patents Act, 1970. The unauthorised HT Bt phenomenon partly reflects farmer frustration with both seed pricing and labour costs. Recent developments include continued ministry deliberations on whether to regularise or strictly suppress the trait, recommendations from the 2017 Field Inspection committee, and the broader Supreme Court proceedings on GM crop governance that have kept commercial approvals in abeyance.

For the working practitioner—whether a civil-services aspirant addressing GS Paper III's science-and-technology and agriculture syllabus, an agriculture-ministry desk officer, or a biotechnology-policy analyst—HT Bt cotton is a compact case study in regulatory failure, the limits of command-and-control biosafety governance, and the political economy of seed technology. It illustrates how an unapproved technology can achieve de facto market penetration when economic incentives outpace enforcement capacity, and it frames the central policy question confronting Indian agricultural biotechnology: whether to liberalise the GEAC approval regime, strengthen interdiction, or craft a calibrated middle path that reconciles innovation, biosafety, environmental precaution, and farmer welfare.