The men were arrested on 28 November by counter terrorism officers.
Mr Imran is charged with the preparation of terrorist acts for allegedly planning to travel overseas.
It comes a day after a security review said it was "conceivable" that the Manchester Arena bombing in May, in which 22 people were killed, could have been prevented.
But MI5 chief Andrew Parker told Mrs May and the Cabinet on Tuesday that about nine alleged Islamist terror plots have been foiled since March.
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