How is the placement scenario of CS/IT graduates in NITIE (PGDIE)? Do they get supply chain and operations profile?

Yes absolutely, people from CS & IT background do get placed in the supply chain department. My brother is a former student of NITIE and currently working as a Supply chain manager at Amazon.

As a matter of fact, if you look at the profiling of any batch, more than 60% of students are from IT background and most of the roles in NITIE are for supply chain management. 

Moreover, companies are not distinct on this basis because not many students anyways have experience in the supply chain & secondly it's more based on knowledge you possess and how you present yourself on the day of the interview.

And most importantly, work experience is just one element of your overall profile. There are other elements like internships, Weekend projects, College grades, certifications completed and other achievements etc.