The Sensex opened at 80,295.99 against previous close of 80,157.88 but quickly slipped to 80,052.34, down 105.54 points or 0.13 per cent. The Nifty 50 opened at 24,616.50 versus Monday’s close of 24,579.60 before declining to 24,552.45, losing 27.15 points or 0.11 per cent at 9.40 am