Hi,

The Seat allotment of JOSAA is done after considering JEE Merit and choices filled by Student. Since you have alloted NIT Surathkal, you could still get you higher choices but the chances are very low. Because if you have enough rank then you would have already got your Higher choice colleges. So after 1st round of allotment ,most of the seat were already filled.This makes your chances to get higher preferred colleges very less .

I hope this will solve your query.

Good Luck!!!!