Tuberculosis (TB) and HIV have been closely linked since the emergence of AIDS. Worldwide, TB is the most common opportunistic infection affecting HIV-seropositive individuals and it remains the most common cause of death in patients with AIDS. Aim is to determine the percentage of tuberculosis infection in HIV seropositive patients and to assess the type of pulmonary or extra pulmonary tuberculosis infection in Human immuno deficiency virus (HIV) seropositive patients in Udaipur zone. This study will be conducted in the Department of Microbiology, . Medical College and associated groups of Hospital, Udaipur. The study was carried out for 6 months in 2016. During this period 5410 patient’s blood were collected and processed The patient populations included in the study were HIV seroreactive by card tests and existence of Tuberculosis by data record which were confirmed by Ziehl Neelson staining and culture positive. | A study of existence of tuberculosis in HIV sero-positive patients and comparative study between pulmonary and extra pulmonary tuberculosis at . Govt. Hospital, Udaipur, India