Hello yash

I hope you are doing good. With reference to your query , I would glad to know you that you have scored a decent marks in 12th . Marks of 12th are only considered at the time of bachelors admission process and if you are doing bsc from bacehlors from private university and willing to get placed then only . In IITS and NITS 12th marks are not given preference at the time of admission in masters. So be chill and dont worry

Hope you found this answer helpful. Good luck for your future