BNF: BNF in a trending volatile session opened with gap down, recovered in first session and fell from high’s with intraday swings of more than 700 pts and remained volatile with sell on rise trend, underperformed to Nifty, with intraday moves of 875 pts, closed negative. Technically, the index may find support around 37700 and pullback could extend if 38300 sustained on upside, index likely to be uncertain on trend with RBI policy meet is due on Friday. Intraday, BNF will have support around 37770 and likely resistance around 38210. As per today expiry data, 38000 PE & 38500 CE remain crucial strike prices to watch, with expected expiry above 38k. On an immediate basis,37877 remains a very crucial level to hold as a support and resistance around 38175.