Even if in 1947, Aden is still being ruled from British India, it makes no sense for the British administration to package what were essentially archaic administrative conveniences from the colonial period with decolonising states. Furthermore, why would Pakistan want Aden? It offers them little and undermines their anti-colonial credibility. As for Burma, I could see India being allocated Burma but I still think it would be very unlikely. At best, I can see some sort of federation being imposed, which then quickly collapses.