Introduction: Gestational diabetes mellitus is defined as carbohydrate intolerance of varying degree of severity with onset or first recognition during pregnancy. Screeening: For detection and diagnosis of gestational diabetes mellitus, AICOG recommends universal screening but has two step procedures. ADA & IADPSG recommend both fasting blood sugar and 1 hr & 2 hr plasma glucose level and that too in high risk group. DIPSI guidelines recommend universal screening for gestational diabetes mellitus According to DIPSI guidelines, 2hrs plasma glucose value >140 mg/dl were considered as gestational diabetes mellitus Aims and Objectives: To asses’ maternal and fetal outcome in patients documented with GDM Material and Methods: The study was conducted on 64 patients with GDM according to DIPSI criteria. Venous blood samples drawn at 2 hours interval for estimating blood glucose. The blood glucose was calculated by glucose oxidase peroxidase method. Patients were managed with dietary modifications and insulin and maternal complications during pregnancy were noted. Mode of termination of pregnancy, indication of caesarean sections in these patients, fetal outcome and NICU admissions were noted. Inclusion Criteria: Antenatal patients attending antenatal clinic and diagnosed with GDM. Exclusion Criteria: Pre-existing medical disorders Observations: Diabetes associated maternal complications were noted in 34 patients (53.12%).Pregnancy terminated by caesarean section in 29 patients (45.31%). 3 patients had intrauterine foetal demise (4.68 % ) and 12 babies had NICU admissions Conclusion: GDM does increase the morbidity of the mother and the fetus and hence timely intervention is the rule.