Hey there,

Hope you are doing well. So here's the answer to your query...

See I dont know how much you have ranked in your csab exam that you are fearing so much for it. If you have made  a mindset to join a college under csab then sit for the counselling and do the further processes if your rank fetches you a college provided you are willing to take up admission in that college as well then go ahead like this. But if you want to get top colleges and your marks arent upto mark then you must prepare yourself in one year by giving a drop and reappearing. Now coming to your josaa college since you have paid partial fees they would give you a certain period of time to pay the whole but I dont know how you paid the partial amount since as far as I know if you dont pay the full money to the board then it wont be accepted so hence you will be loosing your seat at the end. So make a mindset towards one particular way nd go ahead accordingly.