Background and Objectives: Early years are considered to be critical for a child’s development. Lower middle-income countries report developmental delays late, resulting in limited access to early intervention and rehabilitation services. The opportunity to screen children during immunization and regular outpatient department (OPD) clinics is missed. To estimate the proportion of developmental delay and its risk factors among children under two years of age. Methods: A cross-sectional study was conducted among 169 children attending outpatient department (OPD) and immunization clinics of five health centers in Bengaluru City, India. A standardized developmental delay screening tool was used to screen for developmental delay among children under 2 years of age. After receiving informed written consent, a pretested questionnaire was administered, including the child’s socio-demographic details and risk factors responsible for the developmental delay. Proportions were calculated. The relationship between risk factors and developmental delay was assessed using a chi-square test. The odds ratio and adjusted odds ratio were calculated. Results: A total of 59 children (34.9%) were from rural primary health care (PHC), 79(46.7%) from urban primary health care (PHC), and 31(18.3%) from the hospital. A total of 111(65.7%) of them were females, mean age was 10.6±5.5 months. Developmental delay was reported among 30 children (17.8%). Developmental delay was significantly higher among children younger than 12 months of age and those screened in immunization clinics than compared to the other counterparts. Conclusion: The proportion of developmental delay and risk factors for developmental delay is high among children seeking health care. It is required to implement mandatory monitoring and opportunistic screening during immunization sessions to effectively identify developmental delays early in children.