In order to add data into splunk, I am not able to see add data after clicking on settings icon in splunk home page. I have logged in by using my normal account than company.
Only Admin can have access to add data.
No,user or power have permission to do that
It seems like you've been assigned a regular User role and the add data option (and other administrative options) are not available to User Role.
You would need a role with necessary capabilities to be able to access it. See this link for more details of different capabilities available in Splunk.
Looks like you don't have permissions to add data.