Do we require

[Sathish Kumar]

In a furnished room, other people do not know it when you go hungry.

Do we require 'it' in the sentence. If it required, what is it's function?

Can any one clarify please?

[Mister Micawber]

Not required, Sathish. If 'it' is there, 'it' means 'the fact of your going hungry'. The sentence with 'it' would be slightly less formal than the sentence without 'it'.

[Sathish Kumar]

Thanks for your clarification, Micawber