To promote student for next session, go to Academics > Promote students, here select the Class and Section then select promotional details (Promote In Session, Class, Section ) then click on the Search button. At click of this button selected Class and Section student’s list will be show on the below of the page.

Now select the students whom you want to promote in next session then finally click on the Promote button present in the bottom right corner, after clicking this button students will be promote for the next session.