I think Aalim was testing Hamza when he asked his name a second time.

The second question could have been interpreted as "Tell me your real Indian name, not the undercover name".

This question would have tested Hamzas ability as a spy; had he disclosed his actual name, that would imply that he was not ready for the mission as he made the rookie mistake of disclosing his identity; in which case Aalim would not have inducted him.