Indian stock markets, including the Sensex and Nifty, experienced a downturn following the Reserve Bank of India's decision to raise its repo rate and signal further monetary tightening, exacerbated by surging crude oil prices and significant foreign fund outflows.Photograph: Danish Siddiqui/ReutersSensex and Nifty50 Performance: Key Market Highlights TodayIndian benchmark indices, Sensex and Nifty, saw declines in early trade due to the RBI's hawkish stance and global monetary tightening prospects.The Rese ...