Context: Tuberculosis is a major health problem in India .Accurate and also fast diagnosis of tuberculosis has remained a challenge and we determined the impact of CBNAAT on notification of tuberculosis cases in Rajasthan. Aims: The Aim of the present Study was use of CBNAAT in tuberculosis and impact on rate of detection of TB and MDR and XDR TB in Rajasthan. Methods and Material: We did a retrospective study of notified tuberculosis cases registered in government and private hospital from

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... to 2018.comaprison was done for these 4 years Results: There was a total increase of 57 percent over the period of 4 years from 2015 to 2018 in no of tuberculosis notified cases and during the same time there was a 51 percent and 66 percent increase in the number of MDR and XDR tuberculosis cases respectively. Conclusion: Use of CBNAAT significantly increases the no of notified cases of tuberculosis along with MDR and XDR cases .as we recommend that it should be widely adopted and expanded