Nifty futures have rolled around 58% vs 68% with respect to last month, and the Open Interest for the new September contract is lower by around 7lkh implying cautious outlook or profit booking at 10000-10100 levels. BankNifty futures have rolled at around 68% vs 76% compared to last month. However the Open Interest of BankNifty futures in this September series is also less by around 8lkh, implying long unwinding.