Sensex, Nifty erase early gains; Nifty falls below 8,300 mark

The NSE Nifty opened at 8,334 hitting a high of 8,336 and low of 8,252, before signing off with a loss of 35 points or 0.42% at 8,261.The India VIX (Volatility) index was up 6.3% to 17.20.