Sensex ends 500 points higher led by banks, auto shares: Benchmark indices snapped their three-day losing streak led by the gains in financials, auto and index heavyweight stocks like RIL and ITC. Firm global cues, UK election results and government's stance on MAT lifted market sentiments. The 30-share Sensex ended up 506 points at 27,105 and the 50-share Nifty closed up 134 points at 8,191. In the broader market, both the BSE Mid-cap and Small-cap indices, up 1.6% each are moving largely in-line with the front-liners. Government’s decision to refer the contentious MAT issue -that has kept investors on tenterhooks for the last few sessions- to a high-level committee headed by Justice AP Shah has revived risk-appetite and has brought about a relief-rally of sorts.