Hello dear
Gujarat is known as the chemical hub of India.
Hence the cutoff and demand for chemical engineering programme is generally high unlike other states. The best places in Gujarat to do chemicals engineering is given below
1 NIT Surat
2 IIT Gn
3 DDIT Nadiad
4 Institute of Technology, Nirma University
5 MSU, Baroda
6 LD
7 GCET, V. V. Nagar
8 PDPU
Generally cutoff for these colleges are high, so if you can't get into them Colleges like GSFCU SCET surat or SHROFF are there which are decent.

Hello parmar
Hello
The top 10 chemical engineering colleges are as follows -
1.School of Petroleum Technology, Gandhinagar
2.Indrashil University, Kadi
3.VVP Engineering College, Rajkot
4.Shroff S R Rotary Institute of Chemical Technology, Bharuch
5.Pandit Deendayal Petroleum University- School of Technology, Gandhinagar
6.Pacific School of Engineering, Surat
7.Government Engineering College, Bharuch
8.Dharmsinh Desai University - Faculty of Technology, Nadiad
9.Nirma University : Institute of Technology, Ahmedabad.
10.Vishwakarma Government College of Engineering, Ahmedabad.

Hello Parmar,
There are a lot of colleges available in Gujrat for Chemical Engineering. Please refer the below link for the answer of your query.

http://www.engineering.careers360.com/colleges/list-of-be-btech-in-chemical-engineering-colleges-in-gujarat