The Foreign institutional investors (FIIs) were net buyers of Rs 132.39 crore in the futures & options segment on Thursday.According to data released by the NSE, FIIs were net buyers of index futures to the tune of Rs 248.96 crore and sellers index options worth Rs 86.22 crore. They were net sellers of stock futures to the tune of Rs 28.70 crore and sold stock options worth Rs 1.66 crore.