Read more about Indices trades near day's high; Nifty firmly above 15,700 mark on Business Standard. The key barometers were trading near the day's high in afternoon trade. At 13:20 IST, the barometer index, the S&P BSE Sensex, rose 313.15 points or 0.60% at 52,254.79. The Nifty 50 index gained 93.10 points or 0.60% at 15,728.45.