Cashfree provides ready to use plugins to integrate Payment Gateway for Magento.

Follow the steps below to add Cashfree Payment Gateway in your Magento Store. ( Go to the documentation for details) 

Download Cashfree’s Magento plugin (Latest Version 2) from here or ( Version (1.9) is available here)

Step 1: Log in to your Magento Dashboard. Click Configuration from your Store page inside Magento Dashboard.

Step 2: Choose Payment Methods from the Sales dropdown menu on the Configuration page.

Step 3: Enter your Cashfree Merchant App Id and Merchant Secret Key Available on your Merchant Dashboard 

Learn the integration in detail here in the documentation.