Dear Mohit
These are the top engineering colleges in Gujarat.

• Indian Institute of Technology, Gandhinagar
• Sardar Vallabhbhai National Institute of Technology, Surat
• Nirma University, Ahmedabad
• Maharaja Sayajirao University of Baroda, Vadodara
• Pandit Deendayal Petroleum University, Gandhinagar
• LD College of Engineering, Ahmedabad

The best branch, you can choose is ECE/CSE but it basically depends upon your passion. Just go through the Google about those branches and you'll get to know all.
All the best.

Below are the best engineering colleges you can check

-Nirma University, Ahmedabad
-Dhirubhai Ambani Institute of Information and Communication Technology, Gandhinagar
-Pandit Deendayal Petroleum University, Gandhinagar
-Sarvajanik College of Engineering and Technology, Surat
-Chandubhai S Patel Institute of Technology, Anand

To check the complete list you can refer below link

Top Private Engineering Colleges in Gujarat through JEE Main

Good Luck!!