Hi Chetan,

If you are going for IIT's than almost every IIT offers great placement and study environment, let it be any branch, for you Mechanical Engineering.

But, if you wanted to know which IIT is best for Mechanical Engineering, then Indian Institute of Technology Bombay (Also known as: IIT B) has the best faculty for studying B.Tech Mechanical Engineering.

Refer here for more info - https://www.careers360.com/courses/mechanical-engineering-course

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!