Indian neo-banking platform Razorpay announced acquisition of Gurugram-based payroll and management startup Opfin and launch of a corporate credit card for startups and SMEs.The credit card will give no-cost interest for 50 days to businesses with credit line ranging from ₹50,000 to ₹25,00,000. Freelancers and entrepreneurs will also get payment support from Razorpay for invoices and payments.