Indian markets dip as U.S. hikes tariffs over Russian oil ties, triggering broad-based sectoral losses and investor concerns.

• Nifty and Sensex fall 0.6% each, hitting nearly 3-month lows amid the fifth drop in six sessions.
• U.S. imposes 50% tariffs on Indian goods; Nomura warns it may act like a trade embargo on exports.
• Reliance, textile, auto parts, and shrimp stocks slump; all 16 sectors end in red, and mid- and small-caps slide.