After receiving reports of unusual diseases from Padre village in Kasaragod district of Keralawhere endosulfan is sprayed on the cashew plantations of the Plantation Corporation of KeralaCSE offered to conduct laboratory tests on samples collected from the village free of cost. The task was planned under the guidance of Padma S Vankarin charge of the Facility for Ecological and Analytical Testing at the Indian Institute of TechnologyKanpur. A CSE researcher went to Padre to organise the collection of samples. Technical guidance on collection and storage of samples came from M K Prasadcoordinator of the Environment Centre ofthe Kerala Sashtra Sahitya Parishad in KochchiKeralaand V R Raghunandananassociate professor and veterinary toxicologist with the Integrated Rural Technology CentrePalakkad. Sripati Kajampadya doctor who runs a nursing home in the neighbouring Perla villagehelped in collecting samples.After the samples were transported to DelhiVankaralong with CSE scientists Rashmi Mishra and Sapna Johnsonbegan extracting samples for analysis. The process followed for analysis of endosulfan residues