Stock market today, Jan. 28 -- The domestic benchmark indices, Nifty 50 and Sensex, began the day with gains on Tuesday following the Reserve Bank of India's (RBI) liquidity infusion of Rs.1.5 lakh crores, which lifted investor confidence. The Nifty 50 index started at 22,960.45 points, up by 131.30 points or 0.58%, while the Sensex rose by 292.83 points or 0.39% to launch at 75,659 points.

A significant selloff shook AI and semiconductor shares worldwide on Monday, with AI giant Nvidia plummeting as much as 10%. This decline was sparked by concerns over increasing competition from the Chinese AI startup DeepSeek.

Dr. V K Vijayakumar, Chief Investment Strategist at Geojit Financial Services, remarked that the impact of DeepSeek on the U...