Among total 58.59% (498/850) study cohort, glucose –6– phosphate dehydrogenase (G6PD) was estimated to be 13.31±4.06 U/gm Hb, 12.81±3.41 U/gm Hb and 12.94±3.22 U/gm Hb in no AKI, mild AKI and severe AKI categories respectively. The gene discussed is GSTM1; the disease is acute kidney injury.