10.22376/ijpbs.2019.10.1.p1-12 Volume 6 Issue 3 2015 (July - September) lessThan i greaterThan Moringa oleifera lessThan /i greaterThan (Lam.) is well known for wide range of medicinal activities and contribution to dietary diversity. The present study focused on investigating the antibacterial potentiality of the crude extract and different solvent extracts of the pods of lessThan i greaterThan M. oleifera lessThan /i greaterThan using agar well diffusion method against pathogenic gram negative bacterial strains namely lessThan i greaterThan Pseudomonas fluorescens lessThan /i greaterThan and lessThan i greaterThan Pseudomonas putida lessThan /i greaterThan and gram positive bacterial strains namely lessThan i greaterThan Bacillus mycoides lessThan /i greaterThan and lessThan i greaterThan Bacillus licheniformis lessThan /i greaterThan . The best result was showed by Petroleum ether extract against the said bacteria. M.I.C. of the aforementioned extract on gram negative bacteria lessThan i greaterThan P. fluorescens lessThan /i greaterThan and lessThan i greaterThan P. putida lessThan /i greaterThan were found to be 28.6 μg/ml and 32.0 μg/ml respectively while 39 μg/ml and 42 µg/ml values were obtained for gram positive bacteria lessThan i greaterThan B. mycoides lessThan /i greaterThan and lessThan i greaterThan B. licheniformis lessThan /i greaterThan respectively. The petroleum ether extract of lessThan i greaterThan M. oleifera lessThan /i greaterThan pods may act as a novel and effective antibacterial agent. DEVALEENA MUKHERJEE, KUNTAL BHATTACHARYAAND GOUTAM CHANDRA Moringa oleifera, Antibacterial activity, Minimum inhibitory concentration. 513-520