Foreign institutional investors (FIIs) were net buyers of Rs 261.20 crore (provisional) on Friday, according to data released by BSE. While FIIs made gross purchases of Rs 3,286.76 crore, gross sales totalled Rs 3,025.56 crore.Domestic institutional investors (DIIs) were net buyers of Rs 138.66 crore on Friday. While DIIs made gross purchases of Rs 948.85 crore, gross sales totalled Rs 810.19 crore.FIIs were net sellers of Rs 1,183.10 crore on Thursday, February 14, according to data released by Sebi on Friday. While FIIs made gross purchases of Rs 2,572.30 crore, gross sales totalled Rs 3,755.50 crore.