BANKNIFTY Is taking Support from a Trendline as well as Buy Zone. Until this BUY Zone is not broken on higher volumes on downside in BNF Futures, Its a Buy on dips kind of period. HDFCBANK has given a good support to BANKNIFTY and looks really strong on charts. If HDFC BANK continues to support BNF, then we might see levels of 33800 in quick time.