Delhi Jal Board — nil domestic water

Ever since the september 2018, the water supply in our otherwise 'reasonably healthy ' djb pipeline has been steadily reducing each month from about 700 litres per day to absolutely nil, for the last couple of weeks. There is no degradation in our part of the water pipeline. Our water meter is also not faulty. So could the djb please activate itself to check for any obstacles / diversions in its upstream pipeline. Our local djb rep mr harish (For b-4/ 108 to 118 safdarjung enclave) is also unable to provide any answers to this six month old unhappy state of events.