Sensex rallies 1439.55 pts to breach 83,000 level for 1st time; Nifty surges 470.45 pts to settle at an all-time high of 25,388.90.

Sensex rallies 1439.55 pts to breach 83,000 level for 1st time; Nifty surges 470.45 pts to settle at an all-time high of 25,388.90.