On January 17, domestic equity bourses concluded the trading day in the red, with the Nifty closing slightly below the 23,200 mark. Top losers on the Nifty50 index included companies like Infosys, Axis Bank, Shriram Finance, Kotak Mahindra Bank, and Wipro. Sector-wise, the IT and Banking indices both experienced a significant dip, losing around 2% each.