The Sensex is likely to open higher backed by firm global markets and better than expected economic growth.Resistance for the index will be at 10,615, and then at 10,750 levels. While on the downside, the index could find strong support at 10,180 levels.BHEL, Atul Auto, Birtannia, Dr.Reddy's, EIH, Mercator Lines, Omax Auto, NTPC, Sterlite, Swaraj Mazda and Swaraj Engines are scheduled to announce their earnings today.