Sensex jumped 1,000 points on Thursday during noon and was trading above 78,000, hours after falling over 360 points in early trade. Nifty reclaimed the 23,700-mark in a strong intraday recovery, led by firm global cues and sustained foreign fund inflows. Eternal (Zomato), Airtel, Sun Pharma, ICICI Bank and SBI were among the top gainers on the Sensex.