Foreign institutional investors (FIIs) were net buyers of Rs 337 crore (provisional) on Wednesday, according to data released by BSE.While FIIs made gross purchases of Rs 2,633.84 crore, gross sales totalled Rs 2,296.85 crore.Domestic institutional investors (DIIs) were net sellers of Rs 41.40 crore (provisional) on Wednesday. While DIIs made gross purchases of Rs 882.78 crore, gross sales totalled Rs 924.18 crore.FIIs were net buyers of Rs 630.40 crore on Tuesday, September 4, according to data released by Sebi on Wednesday. While FIIs made gross purchases of Rs 2,089.20 crore, gross sales totalled Rs 1,458.80 crore.Mutual funds (MFs) were net buyers of Rs 98.80 crore on Tuesday. MFs made purchases of Rs 510.70 crore and sales of Rs 411.90 crore.