** India's benchmark Nifty 50 .NSEI, Sensex .BSESN down 0.5% each; set for sixth straight session of losses
** Fifteen of the 16 major sectors down; IT .NIFTYIT and pharma NIPHARM top losers
** Broader mid-caps .NIFMDCP100 and small-caps .NIFSMCP100 down 1.2% and 1.7%, respectively
** Pharma stocks down 2.1% as U.S. President Donald Trump announces 100% levy on branded and patented drugs
** IT stocks down 1.8% as Accenture's sluggish revenue outlook brings back concerns over weak growth for sector
** Benchmark indexes down 2.2% for the week, set for biggest weekly drop in nearly six months
** Among stocks, infrastructure major Larsen & Toubro LART.NS jumps 3.4% on exit from loss-making Hyderabad Metro
** Tata Motors TAMO.NS rises 2% as arm Jaguar Land Rover says some digital systems back online following the recent cyber attack