Hi Deepika,

Please use the "email" object already provided. You can use this to get the body content in two ways : HTML or string format.

email.body_text: Contains the body of the email as a plain text string.
email.body_html: Contains the body of the email as an HTML string.

For other values form the inbound email , please refer below URL :

https://docs.servicenow.com/bundle/quebec-servicenow-platform/page/administer/notification/reference...