45787559__2013_pattern_and_sample_paper__Paper_based_Entrance_Test
[Online Entrance Test] To change your answer for any question you have to simply click the new answer option which you want to mark. The earlier option will get unmarked automatically. [Paper-based Entrance Test] 
To change your answer for any question you have to first erase the mark that you created on the answer sheet completely and then darken the appropriate circle on the OMR sheet which corresponds to the exact question and new answer option. If you do not erase the earlier mark correctly your answer will not be marked correctly.
TISS 2013 pattern and sample paper
Paper-based Entrance Test