Foreign institutional investors (FIIs) were net sellers of Rs 1,800.68 crore (provisional) on Tuesday, according to data released by BSE. While FIIs made gross purchases of Rs 4,414.79 crore, gross sales totalled Rs 6,215.47 crore.Domestic institutional investors (DIIs) were net buyers of Rs 463.95 crore on Tuesday. While DIIs made gross purchases of Rs 1,681.08 crore, gross sales totalled Rs 1,217.13 crore.FIIs were net sellers of Rs 26.80 crore on Monday, November 19, according to data released by Sebi on Tuesday. While FIIs made gross purchases of Rs 3,859.70 crore, gross sales totalled Rs 3,886.50 crore.