Foreign institutional investors (FIIs) were net buyers of Rs 169.66 crore (provisional) on Monday, according to data released by BSE. While FIIs made gross purchases of Rs 2,855.94 crore, gross sales totalled Rs 2,686.28 crore.Domestic institutional investors (DIIs) were net buyers of Rs 111.58 crore on Monday. While DIIs made gross purchases of Rs 947.70 crore, gross sales totalled Rs 836.12 crore.FIIs were net buyers of Rs 699 crore on Thursday, April 17, according to data released by Sebi on Monday. While FIIs made gross purchases of Rs 4,067.50 crore, gross sales totalled Rs 3,368.50 crore.Mutual funds (MFs) were net sellers of Rs 86.30 crore on Thursday. MFs made purchases of Rs 953.70 crore and sales of Rs 1,039.90 crore.