Though India lifted the air restrictions on May 31, Pakistan is yet to reciprocate fully, hence New Delhi’s request for a right to fly. There are two southern routes over Pakistan that civilian flights can take, but all routes have not been opened. “In normal bilateral terms, even including Pakistan, no one grants permission to another country to let aircraft or special aircraft fly over its territory. So, it is not a favour Pakistan is doing to India by ‘granting’ permission to overfly,” he told this website. So, what Pakistan is doing is behaving like an abnormal country because normal countries don’t close their airspace to civilian flights.

Source: The Telegraph June 12, 2019 09:11 UTC