Tollywood celebrities delighted the students of GITAM by gracing their celebrations PRAMANA2K-13. Celebrities graced the closing ceremony of the event. While comedian Siva Reddy left all with laughter with his singing style, Manchu Manoj shook legs on the stage. Geeta Madhuri, Srikrishna, Revanth entertained all with songs. Later Manoj and Deva Katta presented prizes to winners of various events.