Aim: To determine the prevalence of GDM and associated risk factors in antenatal women in tertiary care centre at Amritsar. Women of GDM are at increased risk of developing diabetes in future so it becomes a major public health issue. Materials and Methods: The present study was conducted in obstetrics and gynae OPD of BNMCCC, GMC Amritsar. A tertiary hospital based cross-sectional study was done in 500 pregnant women with gestational age between 24 to 28 weeks coming in OPD for antenatal care with DIPSI criteria after taking their written informed consent. Patient was interviewed for detailed history and risk factors like age, parity, height, weight, socio- economic status, urban/rural residency, detailed past obstetric history, family history of GDM, past history of GDM & macrosomia. Results: A total of 500 women were enrolled during the study period. GDM was diagnosed in 56(11.20%) women based on DIPSI criteria. Most of the participants belonged to 20-25 years of age 311(62.20%) followed by 26-30 years 139(27.80%), above 30 years 28(5.60%) and below 20 years of age 22(4.40%). The prevalence of GDM was found to be higher in women belonging to rural area (20/61, 32.7%) and less in urban area ( 36/435, 8.2%). The prevalence of GDM was found to be higher in women with multiparity (12/50, 24%) and less in low parity( 44/450, 9.78%). Women having BMI >27.5 kg/m2 had GDM 10/12 (83.37%) as compared to 46/448 (9.42%) in women with BMI (18.5-22.9)kg/m2. Conclusion: This study showed a Prevalence of 11.20% and Risk factors seen are Age> 25 years, Multiparity and BMI > 27.5.