Razorpay is a payment gateway tailored to serve Indian clients & businesses. Accept payments from customers and automate pay-outs to your account.
Go to Settings >> Payments.
Select "RazorPay" from the list
Click on the "Connect RazorPay" option and Login to the "RazorPay" account to give access.
If you haven't created an account, click on "Sign Up" and create a new Razorpay account.