Foreign institutional investors (FIIs) were net buyers of Rs 106.30 crore on June 30, Friday according to data released by Sebi today.While FIIs made gross purchases of Rs 1793.40 crore, gross sales totalled Rs 1687.10 crore.Mutual funds (MFs) were net buyers of Rs 433.77 crore on Friday. MFs made purchases of Rs 762.74 crore and sales of Rs 328.97 crore.