10 private helicopters and seven-eight Indian Air Force choppers are operating out of Guptkashi in Uttarakhand for rescue efforts. However, fuel has become a major crisis and will worsen from today. The choppers will have to fly to Dehra Dun to refuel which will take 45 minutes and fly back to Guptkashi, which means they will be able to fly for about an hour only. Normally, fuel is carried to the helipad at Guptkashi by tankers, but with roads washed away, that is not possible right now.