DDC delivers over 2,000 oxygen concentrators Updated: Updated: Share Article DDC roped in Delhivery, Uber and Portr for the delivery. | Photo Credit: File Photo Using a unique tech-based solution and with the selfless contribution of several individuals and organisations, the Dialogue and Development Commission of Delhi (DDC) has delivered over 2,300 oxygen concentrators to several Delhi government hospitals to help them in the treatment of patients in this difficult time, the Delhi government stated here Friday. The streamlined process, the government stated, involves vetting medical equipment once received through donors, attaching a unique QR code and then supplying them to various hospitals as per their needs, the government also stated.