Background: Food policies and the environment in and around educational institutes have the potential to influence food practices, eating patterns, and behaviours of children. Methods: A mixed-methods, cross-sectional study was implemented to examine the existing food policies, food environment determinants, and food choices of school (9 schools; Private=6, Public=3) and college (n=4) going students from Delhi and National Capital Region (NCR), India. Data was collected from school (n=253) and college (n=57) students, parents of school students (n=190), teachers (n=12, schools=9, colleges=3), canteen operators of private schools (n=6) and colleges (n=4) using focus group discussions, in-depth interviews, surveys and structured observations (in and around schools and colleges). Results: A variety of food and beverage options were available in and around educational institutes but the majority of these options were unhealthy i.e. high in fat, salt, and sugar, despite restrictions. The available healthy foods and beverages in the canteens as well as outside through vendors were priced higher compared to unhealthy options. During lunchtime, twelve vendors were seen around six schools (3 private and 3 public). The density of these vendors increased at the time of dispersal (n=37) with a higher number of outside private schools (n=27) compared to public schools (n=10). Around colleges, vendors (n=14) were seen throughout the day. The students from all private schools (n=6) and colleges (n=2) were exposed to the high fat, salt, and sugar food advertisements (n=10), whereas, no advertisements were observed around public schools. Private school students are more vulnerable compared to public schools due to the availability of canteen with unhealthier options, the higher density of vendors outside school, higher exposure to unhealthy food advertisements, the higher purchasing power of students to eat outside food, and the non-availability of any school meals programme.Conclusion: The current food environment in and around educational institutes is conducive to establish and sustain unhealthy eating behaviours. It is imperative to ensure the availability of healthy food in and around their educational institutes to improve their health and wellbeing. Therefore, emphasise the need to address this challenge through regular monitoring and surveillance of the recently introduced FSSAI regulation 2020, to ensure its compliance and appropriate enforcement strategies.