MUMBAI, Aug. 27 -- The Nifty Pharma index rose on Wednesday even as the broader Sensex slid 183 points, as institutional investors shifted into India's generic drug exporters ahead of a Federal Reserve event that carries the most consequence for the dollar in months.

The sector's outperformance inverted a familiar relationship. Pharmaceutical exporters in India price most of their output in dollars; a firmer rupee, which hit 95.40 on Wednesday, theoretically compresses the rupee value of every dollar of US revenue. That calculus has been a persistent headwind for the sector through much of 2026. On Wednesday, it did not stop the buying.

Sun Pharmaceutical Industries, Dr. Reddy's Laboratories, and Cipla each closed in positive territory,...