Stock market today: BSE Sensex crosses 77,500 mark; Nifty50 above 23,600 as indices hit lifetime highs

Stock market today: BSE Sensex and Nifty50, the Indian equity benchmark indices, scaled new highs in trade on Wednesday. Both the indices hit lifetime highs - BSE Sensex reached 77,581.46, while Nifty50 reached 23,630.85.