By Shreyashi Sanyal and Sruthi Shankar (Reuters) -UK’s blue-chip index touched fresh two-year highs on Wednesday, joining a rally in global stock markets as investors cheered strong earnings while setting aside concerns about rising interest rates. The FTSE 100 index closed up 1% to hit its highest level since January 2020 in a broad-based rally. “It has been a day of solid gains for equity markets, which continue to put the volatility of January behind them,” said Chris Beauchamp, chief market analyst at online trading platform IG. “Stocks of all types and sectors have made headway, a fact un…