
@Harshavardhan
Whether only this 2013 workflow cannot be published?
Please follow below steps to troubleshoot the issue.
1.Clear SharePoint Designer cache, then republish the workflow.
2. Create a new 2013 workflow in this list then publish, compare the result.
3. Create a new 2013 workflow in other list then publish, compare the result.
4. If the issue persists, you could go to workflow management logs to see whether there are some error messages.
If an Answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.