Arsenic infiltration via bio-geological and anthropogenic mean's has been a global concern in the developing countries due to the severe toxic effects of the compound which leaches to the ecological niche. Herein, we report one such arsenotolerant bacteria isolated from a contaminated soil collected from a district in West Bengal (India), where an arsenic concentration of the soil sample was found to be 0.51 mg/kg. In the present study, several bacteria were isolated from the soil sample, out of which LD 50 value of arsenic for the novel tolerant bacteria was found to be 500 mg./l which was also determined by INT assay. The efficacy of arsenate uptake by this bacterium was 52.20% from its respective LD 50 concentration. After 16S rDNA sequencing, the bacteria showed 99% similarity with Exiguobacterium indicum based on nucleotide homology and meta-phylogenetic analysis. LCMS FAME revealed that the unique fatty acids were monosaturated C:
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