Ragging does exist at Karunya University but on an extremely small scale. There would be an optimum amount of ragging which would not exceed a certain limit. My brother is currently in the third year of his graduate program at Karunya University. During the first year of college, he faced ragging from his seniors. The ragging he faced can be considered to be healthy. The ragging also helped my brother in making connections at the university and in getting associated with several seniors that were helpful up till his third year of college.
A few of the seniors he interacted with during his first years made him sing, dance, write poems, short stories, and narrate for documentaries. These can be considered to be the negative aspect of the ragging he faced. Nevertheless, the positive aspect was that many of them assisted and guided him about not only his career but they gave him useful insights into the various stages of life.
All of this does not sound very critical, but ragging is considered a criminal offense in India and is prohibited. As per what my brother told me, a prevention cell to help out students is there at the university. If the situation becomes intolerable, you can always reach out to the prevention cell or contact the concerned authorities of the university.