In terms of placement and future scopes, should I go for chemical or electronic and instrumentation in NIT Rourkela?

Both Chemical Engineering and Electronic engineering will have wide spheres in the future. When looking into the department at NIT Rourkela, Electronic Engineering leads in terms of faculty and placement support.

The Placement Statistics at NIT Rourkela

But if you are into chemistry, then never force yourself into Electronic Engineering. If you are passionate and hardworking, then you can easily crack the exams with a good CGPA. NIT Rourkela offers good placement support for students with a good CGPA, irrespective of the branch. So make a wise decision by giving initial preference to your interest