Key indices were trading firm as Finance Minister Piyush Goyal finished his budget speech. At 13:41 IST, the barometer index, the S&P BSE Sensex, was up 389.86 points or 1.08% at 36,646.55. The Nifty 50 index was up 113.10 points or 1.04% at 10,944.05. Intraday volatility was high.