The first bronchoscopes developed were rigid and used mostly for extraction of foreign bodies. Modifications to the rigid bronchoscope now allow for maintenance of ventilation, improved visualization with the use of optical telescopes and passage of various instruments for diagnostic and therapeutic procedures. All patients attending OPD & in patient at medical college satisfying inclusion & exclusion criteria were taken for the study. Among the 20 patient who were included under the category of sputum negative pulmonary tuberculosis, BW was done in all the patients and a positive microscopic yield in 4 of 20 patients was obtained. Mycobacterial culture was positive in 2 of the 5 patients in whom culture was done, hence a BW fluid total yield of 24% endobronchial biopsy was taken in 4 patients with a positive yield in 1 (25%) patients. Post bronchoscopic sputum for AFB staining was done in half of the patients 10 with a positive yield in the 2 patients (20%).