I wonder if all of these are actually part of some game plan:
It looks to me like they're trying to mimic Network18's portfolio:
The reason why I say that is because Network18 seems to be putting in effort to make each vertical the best-of-breed in the respective categories. For example, MoneyControl, Yatra, BookMyShow, Tech2.0 are popular.
But many of NDTV's counterparts don't seem to have any value-add. That's the impression I get when comparing, say, ndtvgadgets.com and tech2.com.
It's interesting how these offline media businesses are venturing online and how they're faring.