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The potential of bacteria for the treatment of municipal wastewater was investigated in present study. Total eight bacterial isolates were used for this study that showed growth on wastewater agar medium. These isolates were identified on the basis of morphological and biochemical test and identified asBacillus licheniformisNW16, Pseudomonas aeruginosaNS19, Pseudomonassp.NS20,Planococcus salinarumNS23, Stenotrophomonas maltophiliaNS21, Paenibacillussp.NW9,Paenibacillus borealisNS3 andAeromonas hydrophiliaNS17. TheB. licheniformisNW16 showed highest potential to reduce all parameter under study than other isolates except Ammonical nitrogen.B. licheniformisNW16 andAeromonas hydrophiliaNS17 showed maximum reduction (42.86%) in BOD each.B. licheniformisNW16 andPaenibacillussp. NW9 showed 82.76% and 81.61% reduction in COD respectively.B. licheniformisNW16, P. salinarumNS23 andAeromonas hydrophiliaNS17 showed reduction in nitrate ranging from 17.36%-63.64%. All the isolates have potential to reduced phosphate from 17.55% -72.3%.B. licheniformisNW16,Ps. aeruginosaNS19, Pseudomonassp. NS20, Paenibacillussp. NW9 andAeromonas hydrophiliaNS17 showed reduction in TSS ranging from 42.69%-79.94%.B. licheniformisNW16, Ps. aeruginosaNS19, Pseudomonassp.NS20,美国maltophiliaNS21 andPaenibacillussp. NW9 showed reduction in TDS ranging from 14%-81.4%.