There is no rounds for selection in any branch.
It is a procedure.
Eligibility criteria -
10+2 with 45% marks from a recognized board
Selection will be based on GUJCET
You have to register yourshelf in an online admission program by Gujarat state.
You have to visit the institute for applying for the program.
Total process
1. You have to apply online by visiting GSEB website through GUJCET. If you are new then you have to register first in the website.
You can get broucher and pin for registration by paying INR 350 at any of the listed help centres assigned by the board.
For online application
1.you have to give your details and upload the scanned documents
2. You must have a DD of INR 300 in favor of GCETC payable at Gandhinagar.
3. Upon submission of application form a unique application number will be created  for you. This number is important for you. Keep it safe so that you can use it in future.
4. Take a print out of the application copy and paste your passport photo and attach the required documents and submit it in nearby help centres
5.the requisite will give you an acknowledgement slip after submitting registration form collect it from the help centre.
6.if you qualify the GUJCET then you will get an admission.
Hope it helps!