Foreign institutional investors (FIIs) were net sellers of Rs 2,813.80 crore on Monday, December 04, according to data released by Sebi today.While FIIs made gross purchases of Rs 2,552.70 crore, gross sales totalled Rs 5,366.50 crore.Mutual funds (MFs) were net buyers of Rs 43.15 crore on Monday. MFs made purchases of Rs 484.44 crore and sales of Rs 441.29 crore.