In case you were wondering, bad marks do not mean anything significant, other than the fact that you did not fit into the standardized grading scheme of the examining body. By the way, this fact includes your college grades too. But then, grades are just a quantitative measure of your belief in the system and not a measure of your abilities or talent.
In no way do these marks measure your talent, your intelligence, your creativity, your nature, and most importantly, you as a person.
So, no need to worry or even think about the bad marks in your exams. They would not ideally have any adverse effect later on in your life. Other things would matter more in life, like how you approach situations, how you handle interviews, how your leadership capabilities are, or how well can you work in a team, your practical skills, and how good a person you are.
No sensible person asks for your marks if you show your capabilities, expect perhaps the stereotypical “pados wale” (neighbours) people. So, relax.
These marks do not mean anything in your life, now and later on.
So, my simple piece of advice to you. Keep your head low, work hard.
All the best,