<p>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 as <em>Bacillus licheniformis </em>NW16<em>, Pseudomonas aeruginosa </em>NS19<em>, Pseudomonas </em>sp<em>. </em>NS20,<em> Planococcus salinarum </em>NS23<em>, Stenotrophomonas maltophilia </em>NS21<em>, Paenibacillus </em>sp<em>. </em>NW9,<em> Paenibacillus borealis</em> NS3 and<em> Aeromonas hydrophilia</em> NS17. The <em>B. licheniformis</em> NW16 showed highest potential to reduce all parameter under study than other isolates except Ammonical nitrogen.<em> B. licheniformis</em> NW16 and <em>Aeromonas hydrophilia </em>NS17 showed maximum reduction (42.86%) in BOD each. <em>B. licheniformis</em> NW16 and <em>Paenibacillus</em> sp. NW9 showed 82.76% and 81.61% reduction in COD respectively. <em>B. licheniformis</em> NW16<em>, P. salinarum </em>NS23 and<em> Aeromonas hydrophilia</em> NS17 showed reduction in nitrate ranging from 17.36%-63.64%. All the isolates have potential to reduced phosphate from 17.55% -72.3%. <em>B. licheniformis </em>NW16,<em> Ps. aeruginosa </em>NS19<em>, Pseudomonas </em>sp. NS20<em>, Paenibacillus </em>sp. NW9 and<em> Aeromonas hydrophilia </em>NS17 showed reduction in TSS ranging from 42.69%-79.94%. <em>B. licheniformis </em>NW16<em>, Ps. aeruginosa</em> NS19<em>, Pseudomonas </em>sp<em>.</em> NS20,<em> S. maltophilia</em> NS21 and<em> Paenibacillus</em> sp. NW9 showed reduction in TDS ranging from 14%-81.4%.</p>