The domestic equity benchmarks ended with strong gains on Tuesday. The Nifty closed above the 13,100 mark. As per provisional closing data, the barometer index, the S&P BSE Sensex, soared 505.72 points or 1.15% to 44,655.44. The Nifty 50 index added 140.10 points or 1.08% at 13,109.05.