The Foreign Institutional Investors (FIIs) were net sellers to the tune of Rs 256.87 crore in the futures & option segment on Tuesday. According to data released by the NSE, FIIs were net sellers of index futures to the tune of Rs 684.59 crore while bought index options worth Rs 341.55 crore. They were net buyers of stock futures to the tune of Rs 86.24 crore while sold stock options worth Rs 0.07 crore.As per data available on the Sebi website - FIIs were net sellers of stocks worth Rs 54.60 crore in the cash market on Monday. Mutual funds were net sellers of shares worth Rs 24.90 crore on the same day.