Nifty 50 August Futures (9,771) Triggered by negative global cues, the Nifty and the Sensex started the session with a gap-down, tumbling about one per cent. The Dow Jones Industrial Average fell 0.9 per cent on Thursday to close at 21,844, and the S&P 500 index plunged 1.45 per cent to 2,438 levels. The Nasdaq Composite index tumbled more than 2 per cent to close at 6,216 levels. Asian st...