As a country, we are obsessed with the Nifty50, Bank Nifty, the Sensex, and the Nifty Midcap Index. We don't bother to look at others. Of course, many are not worth looking at as they are there just for the sake of it. There is, however, one index which should probably be looked at before all others. Reason: This index gives you a much better idea of what is happening in the economy. And it is what happens in the economy that matters to the street. So while it is not well tracked today, it is probably time you started paying more attention to this index.