Offline Billing App for Restaurant

I need an Android app developed for offline billing specifically for a restaurant. The app should include: - Menu Management: Ability to add, update, or remove menu items. - Category-wise Organization: Menu items organized by categories... (Budget: ₹1500 - ₹12500 INR, Jobs: Android, Android App Development, Android SDK, Android Studio, Graphic Design, Mobile App Development, Mobile Development, User Interface / IA)