Hii,i will help you as according to your problem.Yes,u can apply surely.Well,Just see eligibilty criteria for CAT.

Eligibility Criteria

If you have completed your bachelor degree but have a backlog, you can register and apply for CAT 2019.

If you have to appear in supplementary re-examination to complete the graduation degree you are eligible to register and apply for CAT 2019.

The only condition is that you should be able to score the required percentage of 50% marks (General category) and 45% for other categories.

Select Yes to the question –‘Are you in the final year of Bachelor Degree while completing the CAT 2019 registration form.

Submit a certificate latest by June 30, 2020 from the Principal/Registrar of the college/institute (issued on or before June 30, 2020) stating that you have completed all the requirements including appearing for supplementary exams. Results may be awaited.

Candidates belonging to categories for which seats are reserved need to note and read the eligibility requirements carefully before applying. No change in the category will be entertained after the closure of registration window.

A copy of the Reserved Category certificate must be uploaded at the time of CAT Application online. Failure to upload a copy of the caste/class certificate will result in the rejection of your CAT 2019 registration.

Hope,this information will helpful for you.Goodluck.