Buoyed by strong global cues as also positive news flow on the political front, Indian equities rallied smartly on Thursday with the benchmark Sensex crossing the psychological 19,000-point mark to close at its highest level in 19 months. Foreign brokerage Goldman Sachs upgraded Indian stocks to ‘overweight’ from ‘market-weight’, setting a December 2013 target of 6,600 points for the 50-share Nifty index, a 13% upside from current levels.