The Facebook post claiming Mahfuj Alam, the Special Assistant to the Chief Adviser, as a member of Hizb ut-Tahrir, is not true, said Chief Adviser's press wing.
The post carried a screenshot of an article published by the English daily, The Business Standard, which referred to a man, namely Abdullah Al Mahfuz, as an alleged member of Hizb ut-Tahrir.
The accused Abdullah Al Mahfuz and Special Assistant Mahfuj Alam are two different persons, said the press wing through its fact-checking Facebook page.
The fact-checking unit of the daily Ajker Patrika cleared the matter in a report also.
Mahfuj Alam has been a key member of the student movement, which led to the mass uprising against Sheikh Hasina's "dictatorship".
He has said in a post that he was never a member of Hizb ut-Tahrir or any other outlawed or Islamist groups.