FBR extends sales tax return / Key reforms implemented in FBR to boost revenues / FBR seeks more staff and resources to bridge Rs7 trillion tax gap / Vehicles' purchase process halted till complete review: FBR chairman / FBR faces Rs50 billion revenue shortfall in January / FBR defends Rs3 billion car purchase amid criticism / FBR to procure more than 1,000 new cars / FBR to acquire over 1,000 new vehicles / Businessmen urge FBR to involve stakeholders in tax amendment discussions to avoid negative impact / FBR officers blame tax policies for revenue shortfall