Correct Answer: Kerala

Solution : The correct answer is Kerala.

The use of endosulfan to cashew crops caused a disastrous pollution catastrophe in the Indian state of Kerala. Endosulfan is an extremely hazardous insecticide that has been widely used in agriculture, especially cashew farming. The aerial spraying of endosulfan on cashew farms in Kerala has serious environmental and health implications. The disaster in Kerala, known as the "Endosulfan Tragedy," happened as a result of long-term pesticide exposure, which caused health problems and environmental degradation, harming local residents and ecosystems.