Multi-Currency NGO Website Payment Gateway

My NGO needs a seamless donation flow that lets supporters pay by credit / debit card or direct bank transfer while allowing me to receive funds in INR as well as USD, EUR and other foreign currencies... (Budget: ₹600 - ₹1500 INR, Jobs: API Integration, Bookkeeping, Compliance, Financial Consulting, HTML, Payment Gateway Integration, PayPal API, PHP, Web Development, Website Design)