Bt Cotton

Bt cotton is a transgenic cotton plant into which one or more genes from the soil bacterium Bacillus thuringiensis have been inserted so that the plant tissue itself synthesises crystalline (Cry) endotoxins lethal to lepidopteran larvae, principally the cotton bollworm complex. The underlying technology was commercialised by the United States agribusiness Monsanto under the Bollgard trademark, and the cry1Ac gene event MON 531 forms the genetic basis of the first generation released in India. In the Indian regulatory architecture the crop falls under the Environment (Protection) Act, 1986, and the Rules for the Manufacture, Use, Import, Export and Storage of Hazardous Micro-organisms / Genetically Engineered Organisms or Cells, 1989, framed thereunder. These rules establish the Genetic Engineering Appraisal Committee (GEAC) under the Ministry of Environment, Forest and Climate Change as the apex statutory body empowered to authorise the environmental release and commercial cultivation of any genetically modified organism, with the Review Committee on Genetic Manipulation (RCGM) under the Department of Biotechnology overseeing earlier research and confined trial stages.

The approval pathway proceeds in defined sequential stages. A developer first conducts laboratory and contained greenhouse work, then applies to the RCGM for permission to undertake limited field trials, during which agronomic performance, gene expression and biosafety parameters such as pollen flow and effect on non-target organisms are evaluated. On satisfactory completion the dossier moves to the GEAC, which assesses food and environmental safety data and may sanction large-scale or multi-location trials before considering an application for commercial release. The GEAC's clearance is the operative legal act permitting cultivation; the Indian Council of Agricultural Research and state agricultural universities supply agronomic and zonal trial inputs, and seed must additionally clear notification and quality requirements under the Seeds Act, 1966, and its Cotton Seeds (Regulation of Supply, Distribution, Sale and Fixation of Sale Price) Order machinery in producing states.

A central agronomic mechanic of Bt cotton is the refuge requirement, by which farmers are mandated to sow a surrounding belt of non-Bt cotton so that susceptible bollworm populations persist and dilute the emergence of Cry-toxin-resistant insects through random mating. Successive technology generations expanded the toxin profile: Bollgard I expressed the single cry1Ac gene, while Bollgard II stacked cry1Ac with cry2Ab2 to broaden the spectrum and slow resistance evolution. A proposed herbicide-tolerant stacked variant, Bollgard II Roundup Ready Flex incorporating glyphosate tolerance, was never granted GEAC commercial approval, yet unauthorised HT Bt seed spread illegally across cotton tracts, illustrating the gap between regulatory permission and field reality.

Bt cotton was approved for commercial cultivation in India by the GEAC in March 2002, making it the first and, as of writing, the only genetically modified crop legally cultivated in the country. Cultivation expanded rapidly across the principal cotton states of Maharashtra, Gujarat, Telangana, Andhra Pradesh, Madhya Pradesh and Punjab, and within roughly a decade Bt hybrids covered the overwhelming majority of India's cotton area. The seed-price dispute between Monsanto's Indian joint venture Mahyco Monsanto Biotech and domestic seed firms led the Union government to regulate trait-fee royalties; the Ministry of Agriculture and Farmers Welfare issued cotton seed price control orders and revised trait values, prompting Monsanto to challenge the action and ultimately scale back its Indian operations. The Supreme Court of India in 2019 also addressed patentability questions surrounding the Bt trait in the Nuziveedu Seeds litigation.

Bt cotton must be distinguished from adjacent categories with which it is frequently conflated. It is not a Bt food crop: India has approved no GM food crop for cultivation, and the moratorium imposed by the Environment Ministry on Bt brinjal in February 2010, despite GEAC clearance, marks the political ceiling on transgenic food. It differs from GM mustard (DMH-11), which is a herbicide-related transgenic developed indigenously and cleared by the GEAC for environmental release in 2022 but contested in the Supreme Court. Bt cotton is also distinct from conventionally bred or hybrid cotton, and from cisgenic or gene-edited crops, the latter governed in India by separate 2022 guidelines exempting certain SDN-1 and SDN-2 edited plants lacking foreign DNA from full GEAC scrutiny.

Controversy has persisted on several fronts. The pink bollworm (Pectinophora gossypiella) developed field resistance to Bollgard II across central and southern India by the mid-2010s, attributed to inadequate refuge compliance and prolonged single-technology exposure, eroding the crop's headline benefit. Debates over Bt cotton's relationship to farmer indebtedness and suicides have been politically charged, with empirical studies offering contested conclusions on yield, input cost and rainfed-versus-irrigated outcomes. The illegal proliferation of unapproved HT Bt seed, the stalled approval pipeline for new events, and litigation over intellectual property and seed pricing continue to define the policy landscape, alongside recurring civil-society demands for stricter labelling and an outright GM moratorium.

For the working practitioner, Bt cotton is the indispensable reference case in Indian biotechnology governance and a recurring General Studies Paper III theme spanning science and technology, agriculture and environmental regulation. It crystallises the tension between technological adoption, regulatory capacity, federal seed pricing powers and biosafety, and it frames every subsequent GM debate from Bt brinjal to GM mustard. Desk officers analysing agricultural trade, intellectual property under the Protection of Plant Varieties and Farmers' Rights Act, 2001, or the institutional reform of the GEAC into a proposed Biotechnology Regulatory Authority of India will find Bt cotton the foundational precedent against which India's posture on transgenic crops is measured.