Nifty futures has rolled around 63% vs 73% with respect to last month, and the open interest for the new December contract is also lower by around 50 lkh implying long unwinding at around 10400 levels. BankNifty futures rolled at around 56% vs 69% compared to last month. Even the open interest of BankNifty futures in this series is less by around 2.2 lkh, due to the long unwinding seen in the last three days of November expiry.