Approximately there are 1.8 million homeless people in India; 52 of them live in urban cities (IGH 2018). There are very few reports on the prevalence of pulmonary tuberculosis among homeless in India. Recently we are conducting a study of screening homeless persons (with no fixed abode-Roaming homeless) for pulmonary tuberculosis in Chennai city, India. This screening was undertaken in all zone of Chennai city. Permission for conducting the study is given from the concern Municipal Corporation and police department authorities of Chennai City. The screening was done at place and time to the availability of homeless persons. One medical officer and other supporting staff with mobile digital x-ray unit formed the survey team. Digital mobile x ray unit was used to take Digital chest eX- ray, Posterior-Anterior view, onsite. Two samples (one spot, one on next day early morning or two on spot) of sputum specimens was collected from persons with the sign and symptoms; cough for more than two weeks, recent weight loss, fever, haemoptysis, chest pain, history of pulmonary tuberculosis and radiological abnormalities suggestive of pulmonary tuberculosis. Sputum smears were examined under florescent microscopy for Acid Fast Bacilli and culture on Lowenstein-Jensen medium for the detection of mycobacte-rium tuberculosis.
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