The Benchmark domestic equity indices, Sensex and Nifty, were trading with gains of around half a per cent in forenoon trade today following softer-than-expected retail inflation print and easing geopolitical concerns. On the sectoral front, buying was seen across the board with realty, metal, and oil and gas leading. The 30-share BSE Sensex rose 351 points to 81,499 and the NSE Nifty50 climbed 131 points to 24,709, when reports last came in.