Reuters Market Eye - The broader Nifty extends fall, slumps 1.06 percent.
Breaks 50-day moving average for the first time since Feb. 25. The BSE Sensex slumps more than 250 points.
Asian shares tumble as Obama authorises air strikes in Iraq.
Blue-chips slide: Larsen & Toubro down 2.6 percent while ICICI Bank falls 0.5 percent.
Also, overseas investors sold shares worth $11.92 million on Thursday.
(Reporting by Abhishek Vishnoi)