Among the 121 MDR-TB samples, 42 (34.7%) showed rpoB Ser531L and katG S315 T, 32 (26.4%) rpoB Ser531L and inhA promoter − 15 (C → T), and 13 (10.7%) rpoB His526Tyr and katG Ser315Thr (Table 5). Here, INHA is linked to tuberculosis.