Should I drop if I am getting a low branch in IIT Roorkee?

No, taking a drop just because you belong to a less preferred branch is highly illogical because the branch rarely matters. In fact, what you learn inside the classroom is hardly applicable when you actually work in the industry. 

Instead, you can inculcate new skills to broaden your job prospects. Explore diverse fields like Data Science, machine learning, IoT, Blockchain technology, web development, android development, and many more. Learn one of these and hone these to your advantage in the future.

A huge platform called MOOC is meant for students who want to pursue additional courses to appear better in interviews or target other fields than their core branches. Invest your time and efforts in these fields and you will find ways to success you never knew existed.

So we can safely conclude that it’s your own passion that is the driving factor and not the choice of your branch. After all, the CEO of Google, Sundar Pichai was a metallurgy and material science student at IIT KGP!