@ Veeren- please refer the below mentioned process by which you can assign rights to the user.
Allocating user access
You allocate user access to an identified user to allow the user to access streams and apps within a Qlik Sense site.
Do the following:
Select License and tokens on the QMC start page or from the StartS drop-down menu to display the overview.
Select User access allocations in the panel to the right.
Click P Allocate in the action bar.The Users dialog opens.
Select users in the list and click Allocate.Allocate is disabled if the number of tokens available for allocation is insufficient for the number of selected users.The dialog is closed and the users are added in the User access allocations overview table.