The grocery selling app consists of a user app, an admin panel, and a delivery boy app. Users log in via mobile, receive and verify OTP for secure access. They can seamlessly order groceries online, opt for online payment or Cash on Delivery (COD), search for products, update delivery addresses, and track their orders. Admins receive real-time order notifications, manage product listings, set delivery time slots, assign orders to delivery personnel, and control the home screen content of the user app. Delivery personnel receive order notifications, track order history, and manage their availability status. This integrated system ensures efficient grocery ordering, management, and delivery.