1.Use standard Bollinger Bands ,that is, bb(s,20,2).
2.Use ema2-HIGH and ema2-LOW to outline the body of the worm.
3.If the body comes out of bands & re-enters ,then make an ENTRY.
4.The EXIT is, if body comes out the other band and re-enters the body.
5.In case of extreme Bullishness/extreme Bearishness another
pair is used pertaining to BB(20,1) or just for guidence in normal case also.
Plotted Minifty instead of Nifty just for one reason the high in Nifty was
shown in 5371.50 since morning.It was not correct.Anyway plotting either
of them does not matter.