Ongoing SAP Technical Support

I need reliable SAP Support and Maintenance focused on technical matters. The environment runs several core modules (FI/CO, MM, HR, plus a few custom add-ons), so day-to-day questions can span performance... (Budget: ₹750 - ₹1250 INR, Jobs: SAP, SAP 4 Hana, SAP BODS, SAP Business Planning and Consolidation, SAP Master Data Governance)