Equity benchmark indices gained marginally during early hours on Wednesday as the Reserve Bank of India kept key interest rates unchanged amid rising COVID-19 cases in the country. Moreover, the International Monetary Fund (IMF) has projected India's GDP to grow at 12.5 per cent in FY22. At 10:15 am, the BSE SandP Sensex was up by 343 points or 0.7 per cent at 49,544 while the Nifty 50 edged higher by 94 points or 0.64 per cent to 14,778. Except for Nifty IT, all sectoral indices at the National Stock Exchange were in the positive terrain with Nifty metal up by 1.3 per cent, PSU bank by 0.9 per cent and auto by 0.7 per cent. Among stocks, Adani Ports was up by 2.9 per cent to Rs 859.95 per share.