Riding a wave of optimism, the Sensex Monday vaulted 1,422 points to close at a record 39,352.67 as investors cheered the exit polls predicting a clear mandate for the Narendra Modi-led NDA in the Lok Sabha elections.

The NSE Nifty surged over 421 points to log its best single day gains in over 10 years. The 30-share BSE gauge also registered its biggest one-day rise in the past six years. The market capitalisation of BSE-listed firms jumped by Rs 5,33,463.04 crore on Monday. As of Monday's close, total valuation of BSE-listed companies stood at Rs 1,51,86,312.05 crore.