Banknifty too opened with a gap like Nifty but gap was bigger in Nifty. However, BNF closed above openning price finishing as a green Doji candle. Also check the you tube video under the name Market Movers India with similar but slightly more content . 31,500 is going to offer some resistance and that is why it will consolidate there. Tomorrow being expiry, option chain data will not help us identify correct levels. As far as Selling areas are concerned, there are none on Banknifty’s chart. One can Sell at around 31500 and buy at Buying area marked on chart near 31030, 300 points down from CMP.