This Special Study consisted of three parts: Studying Larval Mosquitoes, Biting Mosquitoes and Resting Sand flies, including case distribution of Salazar cases arid flood control, drainage and irrigation projects. The principal means of doing this was a review of all available information about Kala-zar distribution and relating it to the presence of FCD/I projects, and a case study analysis using data gathered by the Thana Health Centre and sample survey, sample data analysis.