Mumbai, Sept. 2 -- The key domestic indices continued to trade in narrow range with modest gains in early afternoon trade, supported by robust GST collection in August. Optimism prevailed ahead of the GST council meeting scheduled later this week. Investors are closely tracking developments on U.S. tariff measures, FII outcome and monthly auto sales data. The Nifty hovered above 24,700 level.

Metal shares jumped for the second consecutive trading session.

At 12:25 IST, the barometer index, the S&P BSE Sensex advanced 302.95 points or 0.38% to 80,667.44. The Nifty 50 index added 105.40 points or 0.43% to 24,731.35.

The broader market outperformed the frontline indices. The S&P BSE Mid-Cap index jumped 0.57% and the S&P BSE Small-Cap ind...