Tracking the Day's Trend

As a day trader in NIFTY, I have to learn to find whether today is going to be a trending day or a rangebound day. Trading is similar to probability. Every trade has an edge of some percent and by finding it whether the day is trending one or a rangebound one, we can take our positions accordingly with a much greater probability of success. More about these are discussed in these posts - one and two

How should we do so for Indian markets? One great indicator is the Advance-Decline Ratio. By taking positions along with the analysis of this ratio may help one to take a trending vs rangebound call on the day.