Hello candidate

DMS IIT Delhi would be the better choice for all specializations when compared to IIM Ranchi or any other new IIM for that matter.

Reasons include-

Better placements, smaller batch size, great location, world renowned IIT DELHI brand, 50+ years of alumni, great rankings by various world renowned agencies, exceptional opportunities for people with work experience etc.

Talking about operations domain, yes you do have decent opportunities. Having said that, you'll find quite balanced placements in DMS, IITD for almost all specializations now.

And yes, you are really at an advantage if you have decent work experience and it really gets rewarded in placements, unlike many other b schools where your work-ex could be a disadvantage.

Hope that helped. All the best.