That territory is considered full-friendly after you captured it during your turn.
So now that its after your turn, its defiantly friendly to the point where you can land planes there.
tl:dr Yes
I think you meant to say “definitely”
India has fallen and the British are out of the game except for one sub. There is an ANZAC guy in Malaya. Can ANZAC or Allied forces build a factory there and produce out of that factory.
Welcome, theSonalsorises!
No. UK still controls Malaya. If Japan captured Malaya, then another Allied power recaptured it while Japan still held India, that power would then control Malaya and could build an IC there.