KARACHI - The reported posting of Sales Tax staff in restaurants by Khalid Mehmood, Collector, Sales tax Appraisement is very much appreciated by APTMA. The assigned staff of Sales tax Department will help determine precise amount of sales and will also help increase revenue to the government exchequer. It is noted that restaurants in DHA and Boat Basin areas alone are crowded with customers. At times, the waiting time is more than half an hour for next customer like a festival at a restaurant near Bilawal House. Furthermore, ills issued by them are either 'kacha slip' or an unregistered sales tax invoice.