Sensex closes at 19606.55, soars 243.36 points * Nifty closes 104.40 points up at 5867.45 * Oil prices stay below $90 * Rupee firm as investment flows seen steady

Sensex closes at 19606.55, soars 243.36 points * Nifty closes 104.40 points up at 5867.45 * Oil prices stay below $90 * Rupee firm as investment flows seen steady

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