Tally-Integrated Order & Distrbution Management App

I’m building a distribution-management application that talks directly to Tally Prime ERP so every sales order and payment stays perfectly in sync with our accounts. Two user groups will work inside the same system... (Budget: ₹600 - ₹100000 INR, Jobs: Android, API Development, Backend Development, C# Programming, Database Management, Frontend Development, Mobile App Development, Software Architecture, User Interface / IA, Web Development)