Mumbai, Feb. 1 -- Among the components of the S&P BSE Telecommunication index, Mahanagar Telephone Nigam Ltd (down 5.61%), Avantel Ltd (down 3.55%),Railtel Corporation of India Ltd (down 2.74%),HFCL Ltd (down 2.49%),Tata Communications Ltd (down 2.21%), were the top losers. Among the other losers were Tata Teleservices (Maharashtra) Ltd (down 2.07%), OnMobile Global Ltd (down 1.73%), Bharti Airtel Ltd (down 1.61%), Route Mobile Ltd (down 1.21%), and Vodafone Idea Ltd (down 0.91%). On the other hand, GTL Infrastructure Ltd (up 2.12%), Vindhya Telelinks Ltd (up 1.33%), and ITI Ltd (up 0.21%) turned up.At 13:48 IST, the S&P BSE Sensex was down 67.54 or 0.09% at 71684.57.The Nifty 50 index was down 23.8 points or 0.11% at 21701.9.The S&P BSE Sm...