Fig 1. The integrated drug resistant TB diagnostic algorithm as per the Programmatic Management of Drug Resistant TB Guidelines, Revised National TB Programme, India, 2017.

^aExtra-pulmonary TB ^bRifampicin resistant TB ^cRifampicin sensitive TB ^dFluoroquinolone ^eSecond-line injectables ^fFirst-line Line Probe Assay ^gSecond-line Line Probe Assay ^hIsoniazid ⁱAll diagnosed TB patients (clinically diagnosed or microbiologically confirmed) were offered Xpert® MTB/Rif assay to know the rifampicin sensitivity status as per the Universal Drug Susceptibility policy since April 2018 in Karnataka state, India.