Mumbai, Aug 30 (Reporter) The BSE Sensex remained on top on Friday too, advancing 503 points to open at a new high at 82,637.03 as buying was seen across the board. The National Stock Exchange (NSE) rose 66.75 pts to 25,218.70. The BSE registered intraday high and low at 82,637.03 and 82,316.95 pts, respectively. The NSE registered days high and low at 25,258.80 and 25,199.40 pts, respectively. The Mid Cap rose 0.43 pc and the Small Cap by 0.26 pc. In 30 scrips, 21 advanced while 9 declined. The gainers were Bharti Airtel by 1.21 pc to Rs 1585, Powergrid by 1.19 pc to Rs 337.05, Titan by 1.15 pc to Rs 3574.55, and Hind Unilever by 1.07 pc to Rs 2813.70. The losers were Tata Motors by 1 PC to Rs 1108.45, Reliance Industries by 0.34 PC to Rs 3030.50, Adani Ports by 0.33 PC to Rs 1470.75, and Tech Mahindra by 0.20 PC to Rs 1643.55...////...