No, i don't think there is such scheme like this in cbse. If you have taken admission already in college you can't go for it. To be very honest its okay if you didn't get good marks in board because marks can give you a good college but you can't achieve success by marks it can give you a job but being staple at that job depends on your knowledge. So I'll suggest you to do whatever you are doing give your best in it because if you score good marks in college this will form great impression when you'll give interview in future so I'll suggest you to do hard work by right now. Don't de motivate by your board result.

Good luck!