Dear,

The student does not have the right to use a mobile phone in a college or school. Most engineering colleges ban usage of mobile phones inside their academic premises. It is a rule to be followed by all students in the campus. Use of cell phones within the campus is prohibited. No student is allowed to create disturbance in any manner whatsoever inside the examination hall during the examination sessions.

For any emergencies you can always use the college office phones with required permission.

Hope this helps!