Dr. Subodh K. Nawal2, *Dr. Mamta R. Heda1,, 1 Associate Professor, Dept. of Tuberculosis and Chest Diseases, L.N. Medical College & Research Center, Bhopal. India. 2 Assistant Professor, Dept. of Tuberculosis and Chest Diseases, Sriniwas Institute of Medical Sciences, Mangalore. India., India