Controller BOM Cost Optimization

I have a complete controller-level Bill of Materials that includes microcontrollers, capacitors, position sensors, IPMs, N-channel MOSFETs and IGBTs. The immediate goal is to drive the overall cost down without sacrificing reliability or long-term availability... (Budget: ₹600 - ₹1500 INR, Jobs: Bill of Materials (BOM) Analysis, Component Engineering, Electrical Engineering, Electronics, Manufacturing Engineering, Microcontroller, PCB Layout, Power Electronics & Battery Management (BMS), Sourcing, Supply Chain)