Which is a better choice, IIT Mandi Mechanical, IIT Dhanbad Mechanical, or a new IIT like IIT Tirupati Electrical?

A few of my friends graduated from IIT Mandi, IIT Dhanbad, and IIT Tirupati. Here are some facts according to their experience-

• IIT ISM Dhanbad is an old institute established that was primarily a mining institute ISM.
• IIT Tirupati doesn't have a permanent resident campus itself so it's not a good choice.
• Now if to choose between Mandi and Dhanbad for the same branch choose Dhanbad as it is an older and well-established campus.
• IIT Dhanbad Mechanical course is more preferable to the IIT Mandi Mechanical course.

However, if the IIT is not on a makeshift campus then you should go for the Electrical branch even if the IIT is new.