The number of infections caused by microorganisms is increasing significantly over the last few years. A total of 140 patients admitted to the central teaching hospital of pediatrics from the 1^st of Jun 2017 to 31 October 2017. The Clinical samples was processed from culture and sensitivity testing. Antibiotic discs used for gram negative isolates. The most prevalent gram negative isolates included Escherichia coli 63 (45.0 %), Pseudomonas spp. 21 (15.0 %), Klebsiella spp. 19 (13.6 %) predominantly. Escherichia coli were the most prevalent isolates from urine 45 (71.4 %), Klebsiella spp. 11 (57.9 %) and Enterobacter spp. 11 (68.8 %) followed by Escherichia coli 10 (15.9 %) predominant from blood. 68 (48.6 %) of specimens were urine, 47 (33.6 %) were blood and 25 (17.8 %) were from other origins. Resistance to CTR was 42 (51.2 %) in Escherichia coli, 15 (18.3 %) in Pseudomonas spp. 9 (11.0 %) in Klebsiella spp. and similarly AMC showed 41 (62.1) resistance among Escherichia coli, 8 (12.1 %) among Pseudomonas spp. and Klebsiella spp. and also GEN showed 27 (57.4 %) resistance among Escherichia coli, 7 (14.9 %) among Pseudomonas spp. and 6 (12.8 %) in Klebsiella spp.