The government announcement to permit direct flight routes over restricted airspace for commercial airlines, will lead to savings of Rs.1000 crore annually in operating costs. Currently, only 60% of Indian airspace is freely available. Restrictions on (its) utilisation will be eased so that civilian flying becomes more efficient. This is expected to result in a benefit of Rs.1000 crore annually in the form of lower fuel burn and crew cost by way of reduction in flying time. This promise had been made by the prime minister when he had reviewed the aviation sector on May 1.