Hello Pravin!!

Anna University is one of the oldest institute of engineering and it also holds good nirf ranking comparable to the different IIT. Lab facilities in Anna university is little above average but faculities of chemical engineering is very much supportive.They will help you to grasp more practical knowledge than bookish thoughts and also it will help you to get internship and better psu's with good package if you study well.

At last all depends on your keen interest.

Good luck!!

Hope it helps!!