Snapping the six-day falling streak, the Bombay Stock Exchange benchmark Sensex today spurted by over 500 points as buying got a big boost after Finance Minister Pranab Mukherjee said the government would not withdraw stimulus measures.

The 30-share Sensex, which had lost 1,405 points in the past six trading sessions, bounced back to record a notable gain of 507.19 points to end at 15,912.13 on tremendous buying support, particularly in blue-chips RIL and Infosys attracted.