I am assuming that by dual MBA you are referring to the PGP program offered at ISB Hyderabad that allows you to specialize in 2 majors. You can either choose one concentration area and one industry course or both concentration areas.
This program is definitely worth it as it provides a lot in a limited time. But I am not exactly aware of what you are expecting from this program so I cannot say with certainty whether this course will be worth it for you or not. What I am certain is that ISB Hyderabad has
So you need to understand your own goals and inclinations to determine the institute's worth.