Vivekbhai,
Check the BNF chart of 8 Feb 17,
From 9.15 to 1 PM OBV line was flat, around 1.06 OBV gave indication of going down, at 1.33 OBV BD and price gave false BD (Whipsaw), @1.52 PM price made high, but OBV never went above its range established in day earlier. Price gave false impression of breakout, but OBV line kept you out of long, at 2.30 real breakdown in both price and OBV.
In side ways it kept you out of trade, in false breakout in kept you out of long, for skilled trader it would be signal of taking short at most favorable price with reasonable SL, and in breakdown it went 200 points down. With Ribbons you could have shorted at 20345 between 2.15 pm to 2.25pm with SL of 20385.
Offcource it is hindsight analysis, if you can do it in real time it is an leading indicators painting rosy picture in ledger
.
Varunji is able to do it since he owns the system hence he calls it leading indicator.
Aside to all that see all three ribbons in OBV pane, they were RED most of the time.