Foreign institutional investors (FIIs) were net buyers of Rs 516.06 crore (provisional) on Monday, according to data released by BSE. While FIIs made gross purchases of Rs 2,908.02 crore, gross sales totalled Rs 2,391.96 crore.Domestic institutional investors (DIIs) were net sellers of Rs 442.99 crore on Monday. While DIIs made gross purchases of Rs 1,331.68 crore, gross sales totalled Rs 1,774.67 crore.FIIs were net buyers of Rs 1,140.90 crore on Friday, December 28, according to data released by Sebi on Monday. While FIIs made gross purchases of Rs 3,255.20 crore, gross sales totalled Rs 2,114.30 crore.Mutual funds (MFs) were net buyers of Rs 34.30 crore on Friday. MFs made purchases of Rs 827.60 crore and sales of Rs 793.30 crore.