ATS Routes
In India we have airspaces from D to G.
Of these E & F form the ATS routes if classified.
Read somewhere that In India there are no uncontrolled airspace. However if there are no ATC services available then pilots should monitor 121.5 & 122.8. During RTR also remember covering routes and mentioning uncontrolled airspace.
Both these are contradictory. Can any one explain. I think as per ICAO any airspace after D is uncontrolled.