Nifty 50, Sensex drop 0.85% as Mideast tensions rise; crude jumps 9% amid Israel, Iran clashes, spooking investors.

• 12/13 sectors fall; smallcaps, midcaps slip 0.4% as Asian markets tumble 1% on geopolitical fears.
• Crude surge hits oil refiners; upstream firms gain as analysts warn of risks to Indian energy, auto sectors.
• Airline stocks plunge post-Air India crash; geopolitical risks threaten market recovery, experts caution.