New Delhi: These are essential in places where there is no piped water supply, says DJB CEO Ramesh Negi In a reversal of an earlier ban on digging borewells anywhere in the Capital, the Delhi Government on Tuesday issued a notification, permitting the use of borewells to extract groundwater. The policy, however, comes with a rider: a borewell can be used by law only if an entire colony or community is benefitting from it. The new law does not permit individuals to extract groundwater for personal use. At the Idea Exchange programme of The Indian Express on Tuesday, Delhi Jal Board