The foreign institutional investors (FIIs) were net sellers to the tune of Rs 22.20 crore in the futures & option segment on Monday.According to data released to the NSE, FIIs were net sellers of index futures to the tune of Rs 67.25 crore while they bought index options worth Rs 52.90 crore. They were net sellers of stock futures to the tune of Rs 7.60 crore and they sold stock options worth Rs 0.24 crore.As per data available on the Sebi website - FIIs were net buyers of stocks worth Rs 67.80 crore in the cash market on Friday. Domestic mutual funds (MFs) were net buyers of shares worth Rs 193.99 crore on the same day.