Business Workflow Automation Build -- 2

I need a streamlined, reliable automation layer for my BIJILITRA operation. Right now our day-to-day work still relies on a mix of spreadsheets, a small SQL store, and a couple of home-grown tools, and it slows us down... (Budget: ₹1500 - ₹3000 INR, Jobs: .NET, C# Programming, MySQL, PHP, Software Architecture)