The BSE benchmark Sensex gained over 56 points in early trade today to fresh 14-month high on sustained buying by funds and retailers on expectations of more economic reforms by the government.The 30-share barometer added over 56 points, or 0.30 per cent, to trade at over 18,809, its highest level since July 2011, with stocks of power, FMCG, realty and IT sectors leading the rise. The index had gained almost 404 points on Friday.The wide-based National Stock Exchange index Nifty regained psychological 5,700 points level by rising nearly 19 points to around 5,710.