Workers supervise as a water tanker is filled from a hydrant, to supply at residential areas for a charge on the outskirts of Islamabad. — AFP/FileRawalpindi:The worst shortage of water here in Rawalpindi has given rise to an alarming surge in illegal water trade, with private water tankers and hydrants operating outside the bounds of the law.Attempts to curb this burgeoning illicit industry have fallen short, allowing private tankers mafia and unauthorised commercial tube wells to thrive...