The Foreign Institutional Investors (FIIs) were net buyers to the tune of Rs 201.89 crore in the futures & option segment on Tuesday.According to data released by the NSE, FIIs were net buyers of index futures to the tune of Rs 8.84 crore and bought index options worth Rs 134.66 crore. They were net buyers of stock futures to the tune of Rs 53.92 crore and bought stock options worth Rs 4.46 crore.As per data available on the Sebi website - FIIs were net buyers of stocks worth Rs 331.90 crore in the cash market on Friday. Mutual funds were net buyers of shares worth Rs 225.18 crore on the same day.