Hi! Don't worry, I was in a similar situation myself. I got 65% in my 12th Boards as a commerce student with my optional subject being legal studies (53% in Legal Studies). I was just a little above-average as a student in college and got around 6.9 GPA out of 8.

I interned and got placed after 7 months of unpaid internship (online-covid), I did not exclude my 12th grade percentages from my CV and was never asked about them.