Does Razorpay offer sandbox environment?
Yes. Sandbox or test account can be used to test your integration without having to actually charge credit cards. The Test Environment is an exact copy of the Production Environment, except credit cards and bank accounts are not actually charged.
Note: Make sure that you use Razorpay’s sandbox credentials in Zoho Billing’s Test organization and Razorpay’s Live credentials in Zoho Billing’s Live organization.