If you had to choose from the options mentioned, it's recommended to opt for a brand name. Your priority should be IMT Ghaziabad, IMI Delhi, and SIOM Nashik.

When it comes to Operations Management, NITIE, and IITs are considered to be top-notch. They offer a comprehensive curriculum, job roles, and industry exposure, making them highly sought-after. In fact, IITs have established their brand in management, specifically due to their expertise in operations. However, when it comes to Operation major, NITIE remains unparalleled, as they have the longest chain of alumni in operations, holding high-level designations for many years.

If operations are still your preferred field, and you don't have any other options apart from NITIE or IITs, then your decision should be entirely based on the brand you are joining.