The Nifty and Bank Nifty futures closed at 8569 and 18835, respectively, with potential support levels at 8449 and 18367. Predictions indicate possible downward movements to 8217 for Nifty and 17763 for Bank Nifty if current support levels are broken, while resistance levels are noted at 8637 and 19147. Additionally, significant market news includes a potential sale of Reliance Industries' US shale gas stake and the cancellation of Sahara Mutual Fund's registration by SEBI.