Listened to the 2 tapes on LiveATC. Slight differences with the transcript, e.g it is not " BanglaStar211, that would be VFR.“ but " BanglaStar211 confirm you are VFR".
and the (unintelligible) after the " request your intentions ": is "I would like to land on runway 02 "
But it does not change the overall picture. However the sound of the voice of the Captain , and the pace of delivery, would coincide with s being incapacitated , possibly Hypoxia as I indicated earlier, or another reason. But it would be easy for pilots of the airline that know him if this was his " normal" voice to clear this possibility.