The benchmark indices, BSE Sensex and NSE Nifty50, overcame early losses to close higher on Thursday, marking their fifth consecutive session of gains. The Sensex rose by 809.53 points, or 1%, to finish at 81,765.86 after trading within a range of 82,317.74 to 80,467.37. Similarly, the NSE Nifty50 gained 240.95 points, or 0.98%, to close …