In an attempt to quash speculations, Prime Minister Shehbaz Sharif appointed Rashid Mahmood Langrial, a BS-21 officer of the Pakistan Administrative Services, as the new chairman of the Federal Board of Revenue (FBR) on Wednesday. He faces the daunting task of carrying out end-to-end digitisation of the tax process. The coveted office of FBR chief fell vacant last month after Zubair Tiwana requ