Benchmark indices, Sensex and Nifty50, achieved record highs in Wednesday's trading session. Sensex crossed the 80,000 mark for the first time, while Nifty50 reached a new peak of 24,307. As of 10:00 AM, BSE Sensex was trading at 79,937, up by 495 points or 0.62 per cent, while Nifty50 stood at 24,283, up by 159 points or 0.66 per cent.