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BACKGROUND Drug resistant tuberculosis (DR T is a major global public health threat. India, sharing a large fraction of the world's TB burden, is in a critical phase due to the rise of drug resistance. Monitoring the prevalence and patterns of drug resistance is essential to measure the progress of TB control programs. We aimed to systematically review Indian studies on the prevalence and patterns of drug resistant TB among various treatment types and risk groups. METHODS A systematic search was conducted in PubMed, Google Scholar, I