Gujarat

Lalbhai Dalpatbhai College of Engineering
Sarvajanik College of Engineering & Technology (SCET)
BVM Engineering College
GH Patel College of Engineering and Technology
Government Engineering College
Vishwakarma Government Engineering College
C.K.Pithwala College Of Engineering & Technology
Hasmukh Goswami College Of Engineering

You have to choose as per your priorities and factors which you are looking for in the college. Example: recruitment, exposure, campus, fee, ROI etc.

Hello Parth,
These two coaching institutes are best for GATE preparation:
1. The GATE Academy, Ahmedabad
No. 323, 3rd Floor, Sunrise Mall, Near Manasi Circle, Vastrapur, Ahmedabad, Gujarat 380015
2. Ice GATE Insitute
201, Sunrise Mall, 1st Floor, Near Mansi Circle, Vastrapur, Ahmedabad, Gujarat 380015
All the best.

1. M.L.Parmar College of Computer Science & IT
2. Academy Of Computer Science and Apps.
3. GLS Institute of Computer Technology
4. St. Xavier's College

Here,
I suggest some good college for petrochemical engineering college in Gujarat:
School of Petroleum Technology
Pandit Din Dyal Petroleum University,
Government Engineering College.

Please check: https://goo.gl/q63qVB

With these scores, you should try private universities or deemed universities