Mid- and small-cap shares witnessed strong buying interest. The Indian equity benchmarks gained for second straight session on Wednesday on the back of buying interest in rate sensitive shares after the Reserve Bank of India held its key interest rates unchanged at record lows to support the economy against the backdrop of a second surge in COVID-19 cases. The Sensex rose as much as 699 points at the day's highest level and Nifty 50 index briefly moved above its important psychological level of 14,850. The Reserve Bank of India (RBI) stuck to its accommodative monetary policy stance amid conc...