1) OVER EXTENDED ZONE when nifty strong bullish or bearish that time nifty make over extended zone
2) NIFTY BULLISH CYCLE after market correction nifty move bullish trend ( 2004 TO 2007 & 2012 TO 2015 & 2017 TO 2020)
3) 30% above fall short period called CRASH MARKET below 10% fall called normal down 10 to 20 % fall called correction market more than 20% fall called bear market