Mumbai, Aug. 14 -- The key equity benchmarks ended with minor gains today, buoyed by upbeat domestic WPI data that helped sustain positive momentum. Sentiment was further lifted after S&P Global upgraded India's sovereign rating from BBB- to BBB while maintaining a stable outlook.

Investor caution ahead of Russia-U.S. discussions on the Ukraine conflict kept the rally in check during the holiday-shortened week. Meanwhile, the June-quarter earnings season wraps up today, with the final batch of companies set to announce their results. The Nifty closed above the 24,600 mark. Gains, however, were capped by weakness in metal and energy stocks.

The S&P BSE Sensex added 57.75 points or 0.07% to 80,597.66. The Nifty 50 index rose 11.95 points ...