India's GlaxoSmithKline Pharma on course for sharpest fall in 5 years on revenue drop

** Shares of GlaxoSmithKline Pharmaceuticals GLAXO fall 6.7% to 2,956 rupees

** Stock on track to fall most in a session since March 23, 2020

** Indian unit of British drugmaker GSK Plc GSK posts 1.2% decline in Q1 rev from ops to 8.05 bln rupees ($92.1 mln), first decrease in revenue since March 2023

** "Performance was below anticipated levels," the company said, citing "seasonal disruption"

** Nearly 150,000 shares traded, 1.5x its 30-day moving avg

** YTD, GLAX up 31%

($1 = 87.4300 Indian rupees)