If you are in a 3 year course and you are in the final year, then you didn't have to upload your PGCET application without it as you may not get your results. But if you have your 3rd year marks, then I would recommend you to provide the 3rd year marks in your PGCET MBA application.

To know more about Karnataka PGCET application, visit the link below:

https://bschool.careers360.com/articles/karnataka-pgcet-mba

I hope this answer helps. All the very best for your future endeavors!