Hello Sudhansh, 

First of all congratulation for performing well in your exams. The chemical engineering of IIT MADRAS is really good and you have a good scope for research or doing jo in some multinational companies. The companies which comes for the recruitment are

• ITC
  
• HUL
• SHELL
• RELIANCE 
• DR. REDDY'S
• ONGC
• SUMITOMO

And lot more than these. The placement are good and sometimes even better than Mechanical and Electronics.

I hope you will find my answer helpful. 

All the best.