Hii..

As you ask about best chemical engineering college ....first mentioned the name of  city or state  where you want to get admission ...

All the best!!

Dear Aniket here's the list of top chemical engineering colleges in India-

1. Indian Institute of Technology Bombay

2. Vellore Institute of Technology, Vellore

3. National Institute of Technology Warangal

4. SRM Institute of Science and Technology, Chennai

5. University of Delhi, Delhi

6. Motilal Nehru National Institute of Technology Allahabad

7. Birla Institute of Technology and Science, Pilani

You can choose among any of the IITs, they all offer this course and even the NITs. I have mentioned just the top most among them. 

All the best 

Hope this helps