The Foreign Institutional Investors (FIIs) were net sellers to the tune of Rs 1,174.56 crore in the futures & option segment on Wednesday.According to data released by the NSE, FIIs were net sellers of index futures to the tune of Rs 480.60 crore while bought index options worth Rs 506.41 crore. They were net sellers of stock futures to the tune of Rs 1,195.53 crore and sold stock options worth Rs 4.77 crore.As per data available on the Sebi website - FIIs were net sellers of stocks worth Rs 480.66 crore in the cash market on Tuesday. Mutual funds were net sellers of shares worth Rs 368 crore on the same day.