hey roshan

if we talk about colleges which takes admissions on the merit base then yes you have a good chance to get some . but some colleges may consider best of four marks for admissions so geting the topmost college may get difficult . check out the list of top colleges

https://collegedunia.com/bsc/gujarat-colleges

most of the colleges takes admissions on merit base for bsc admissions so check out the most convenient college for you and check out its last years cutoffs for getting the better idea about percentage needed