Valuation watch: Top-10 most valued firms’ market cap drops by Rs 2.99 lakh crore; TCS emerges as the biggest hit on H1-B visa fees hike

India’s top-10 companies saw their combined market valuation shrink by nearly Rs 3 lakh crore last week due to a bearish equity trend. TCS experienced the steepest decline, while H-1B visa fee hikes, a weaker rupee, and US pharma tariffs rattled investor sentiment across sectors. Reliance Industries remained the most valued firm.