The Bombay Stock Exchange benchmark Sensex today jumped by over 170 points, or 0.92 per cent, in opening trade on buying by foreign funds, driven by rally on the global bourses after positive US manufacturing data.

u00a0The 30-share index rose by 171.05 points to 17,729.78 points. The BSE barometer had gained 94 points to close at a 20-month high of 17,558.73 points yesterday. The wide-based National Stock Exchange index Nifty rose by 53.30 points, or 1 per cent, to 5,285.50 points.