BSE Sensex dropped 372 points, settling at 76,728.37 due to geopolitical tensions.
NSE Nifty ended 109 points lower at 23,946.25, with major declines in the auto and financial sectors.
Kotak Mahindra Bank shares fell after CEO Ashok Vaswani announced he will step down in December 2026.
Global concerns over rising Brent crude prices and US-Iran hostilities dampened investor sentiment.