You can easily book an Ola, Uber, or an airport taxi is also available.
There is aiport metro service available, board an airport metro and get down at Guindy metro station, from there local bus service is available to reach campus velachery gate.
Railway Station
From Chennai Central Railway station, there is a local metro station at walking distance , Chennai Park Town, from there get a local train towards velachery and get down at Kasturbai Nagar station. Campus main gate is approx 200 mts from there.