Foreign institutional investors (FIIs) continued their buying spree, net purchasing shares worth Rs 8,540 crore, while domestic institutional investors (DIIs) net sold Rs 2,304 crore. At market close, the Sensex rose by 809.53 points to 81,765.86, and the Nifty increased by 240.95 points to 24,708.40. Year-to-date, FIIs have net sold Rs 2.86 lakh crore, contrasting with DIIs' net purchases of Rs 5.75 lakh crore.