Banknifty (BNF) today opened gap up and made new lifetime high,31813.70. Then, due to profit booking in second half went down below 31500 but again resurged on heavy buying and created new lifetime high of 31850. Such is the strength in Banknifty. Please check my video posted on youtube under name Market Movers India for slightly more but similar content. So if BNF goes down tomorrow and is near the buying area as marked on chart, one can buy. Shorting near life time high might prove risky even though I expect some consolidation in nifty and BNF both before they start new upward journey.