The Sensex is likely to open higher following a recovery in the global markets.The index is likely to face resistance around 10,820-10850 levels, while support on the downside could be at 10,715-10,685 levels.Market analyst Shah says that if the spot Nifty breaks 3150 on the downside, the index could slip to 3085. On the upside, the index will face resistance around 3190-3225 range.Stocks with positive bias today include Sterlite, Hindalco, Reliance Communications and Dr.Reddy's, says Shah.He adds, that punters could be active at the Prime Focus counter on expecatations of some positive news.