It is definitely people management and project management.
They are not mutually exclusive, you could refer to the diagram to justify the same.
![](https://www.edureka.co/community/?qa=blob&qa_blobid=5008924343570533407)
For detailed information on the skills of a project manager, have a look at the following blog.
https://www.edureka.co/blog/project-management/#PMSkills