Hey abhijit !! First of all , don't need to panic.

And congrats for selection in first round.

So, if you are not satisfied with your given college and its branch, then go to your correspondence reporting centre and  take your seat given in first round of counseling

And choose "FLOATING " option ,So that you are eligible for further round of counseling!   

Best of luck ! Hope you will get your best ! Thanku!

Hey Abhijith,

After the declaration of first round, few days later second round will be conducted. Now if you are satisfied with the college and branch you got through the first round then you can freeze your choice by visiting any of the centres after round 1. But if unsatisfied then you have to visit the centre and ask for upliftment of your choice in the consequtive upcoming rounds. the result of second round is declared on june 27 2018,if satisfied then you can go to a centre to lock your college and branch that you got through second round. But again if unsatisfied then just wait till the third round.

For more details you can go through following website link,

https://www.google.co.in/amp/s/engineering.careers360.com/articles/wbjee-counselling%3famp

All the best!