Hi @rajatd-exte,
You sure can. ServiceNow provides a REST API integration point where you can create (and update) an Incident, Change and many other records.
Take a look at this SN Docs page which walks through creating an Incident. You can apply the same log for Change Requests.
I've also provided a link from the SN Community which provides some code snippets and other links to follow.
In short however - it's definitely possible and a via solution.
To help others (or for me to help you more directly), please mark this response correct by clicking on Accept as Solution and/or Kudos.
Thanks, Robbie
https://docs.servicenow.com/bundle/tokyo-application-development/page/integrate/inbound-rest/task/t_...
https://www.servicenow.com/community/developer-forum/how-to-create-incident-using-rest/m-p/2544484
