With its strong uptrend, Nifty today crossed 8900, ahead of expiry, in a move which started on Jan 7, 2015. The strong trending move has been mapped by the TTO as seen in the following chart :
The formation of Synchronised Bullish Alignment pattern on TTO had earlier indicated that a strong move was in the offing which was pointed in our update of Jan20, 2015 when Nifty was at 8600 levels.