Mumbai, Mar 15 (Reporter) The BSE Sensex on Friday dropped 473 pts at 72624 in the opening session as selling was seen across the board. The Nifty of National Stock Exchange (NSE) fell 142.45 pts at 22004.20. The Sensex registered intra days high and low at 72998.07 and 72,624.63 pts respectively. The Nifty registered intra days high and low at 22,120 and 21981.36 pts respectively. The Mid Cap fell 0.1 pc and Small Cap by 0.48 pc. In 30 scrips, 10 advanced while 20 declined. The losers were NTPC by 2.54 pc to Rs 314.05, Infosys by 1.84 pc to Rs 1622.10, M& M by 1.68 pc to Rs 1860 and Axis Bank by 1.58 pc to Rs 1041.80. The gainers were Bajaj Finance by 1.33 pc to Rs 6477.25, Bharti Airtel by 0.70 pc to Rs 1203.70, Bajaj Finserv by 0.44 pc to Rs 1571.05 and Powergrid by 0.30 pc to Rs 267.35...////...