Getting CSE in Thapar University with 72 in JEE Mains and 95% in CBSE will be difficult. For CSE, Thapar University cutoff stays around 96 percentile. If you want to join the institute, you should take a drop year and prepare for JEE Main again. The required cutoff changes year to year, depending on different factors. So, try to score above 130 in JEE Main, to be on the safe side.