Foreign institutional investors (FIIs) were net sellers of Rs 658.22 crore (provisional) on Monday, according to data released by BSE. While FIIs made gross purchases of Rs 3,738.31 crore, gross sales totalled Rs 4,396.53 crore.Domestic institutional investors (DIIs) were net buyers of Rs 211.48 crore on Monday. While DIIs made gross purchases of Rs 1,127.88 crore, gross sales totalled Rs 916.40 crore.FIIs were net sellers of Rs 128.80 crore on Friday, March 14, according to data released by Sebi on Monday. While FIIs made gross purchases of Rs 3,545.60 crore, gross sales totalled Rs 3,674.40 crore.