Indian shares set for weak October as foreign investors ramp up shorts, brokerages say

By Bharath RajeswaranIndia's monthly equity derivatives expiry on Tuesday signalled a risk-off turn, marked by broad unwinding of bullish positions, a fresh buildup of shorts and heavier foreign selling, as markets grapple with a global bond rout, brokerages said.The benchmark Nifty 50 NSE:NIFTY fe…