Infosys, TechM to TCS: Nifty IT index surges 4%, clocks 8% gain amid three-day rally. What’s powering the rise? by Live mint | May 19, 2026 10:25 am | Indian Stocks, Market, News The Nifty IT index rallied over 4% on Tuesday, taking its three-day bull run to 8% amid a sharp depreciation in the Indian rupee.