Is there any limitation for using smartphones at Karunya University?

Yes, the use of smartphones is permitted in the hostels of Karuna University and the premises of the campus. However, I would advise you that you do not use smartphones on the campus of the university, especially during lectures. If you are caught with a mobile phone by a faculty member or lecturer during class hours, then they would confiscate your phone. Some of them may return it by the end of the college hours, but some of them may not return it. This is why it would be better for you to not use your smartphones on campus during college hours. 

In case you do bring along your cellphone to the college, make sure that you keep it in your bag and use it at the canteen or before and after college hours. You can also use your smartphones in restrooms or vacant classrooms. 

Smartphones can be used any time in the hostel of the university, but I would recommend that you do not use them during study hours because you never know when the SRA would come for attendance. Be cautious during the study hours which are usually scheduled between 8:30 to 10:30 PM.

The rules and regulations vary every year at Karunya University. This is how my brother spent his college life during the academic sessions of 2012-2016.