Abhishek,according to the Registration guide manual available at: https://cdn.digialm.com//per/g01/pub/756/ASM/WebPortal/17/PDF/Registration_Guide_CAT_2020.pdf, you need to enter the aggregate of marks or percentage obtained for the semesters completed to date. Going by that, even if you are in your 7th semester now, because you only have results announced until your 5th semester, you should calculate the aggregate or percentage of marks scored until the 5th semester and mention them in the given column. But before that please make sure that you have selected "Yes" for the question, "Are you in the final year of your Bachelor's degree?" Only then will you be able to fill in these details. Because you are in your Final year, you also need a proforma obtained by your Principal or HOD. https://cdn.digialm.com//per/g01/pub/756/ASM/WebPortal/17/PDF/Final_Year_Certificate_2020.pdf This certificate is to enable you to appear for CAT 2020 as you haven't yet completed your Graduation but are in your Final year of Graduation.