hey there,

hope you are doing well. so here's the answer to your query...

see if the entrance exam is already being completed in the government colleges then you can't do anything. But what you can do it if by hook or by crook any college under any concession grounds regarded that your boards results are exceptionally good, can allow you, else you have to wait for a year and try next year again or another thing the last option left if you don't want to give an year drop then you can get admission to a well reputed private college of your choice and go ahead with your course. Other than these there's no option left. One more option I would suggest you is that keep searching and updating yourself about all the govt.colleges where you want to get admitted even take news of unknown ones as well if they are good else an year drop will be the only option.

with best regards!!!