It is not a cypher bookish pattern as D-leg should be retrace only 78.6% of XA leg but in present case it has extended to 130-140% of XA.
I am playing with X-factor Trendline which passes exactly at the top of 1472 recent top where possible D-leg can end.
2 points to confirm a trendline & 3points to draw a valid trendline is what technical analysis teaches- so here is the application with some cypher juices modified.
Trading Strategy
Once Ceat starts falling below 1418- recent low -we will look to sell. Once pattern activates -recent high below 1472 high should be put as stops for lower targets.