[1] In October 2010, Mahbub, as judge of the Sylhet Divisional Speedy Trial Tribunal, ordered investigation into the 2004 grenade attack on a rally of Awami League politician, Suranjit Sengupta.
[3] The main accused in the case was Harkat-ul-Jihad al-Islami Bangladesh chief Mufti Abdul Hannan.
[6] On 21 October 2019, Mahbub was appointed an additional judge of the High Court Division by President Mohammad Abdul Hamid.
[8] In September 2021, Mahbub and Justice KM Kamrul Kader ordered the removal of all structures, except a mosque, from Jhenaidah municipality public park.
[14] Mahbub and Justice Farah Mahbub rejected a petition by Zahangir Alam, former Mayor of Gazipur, challenging the Bangladesh Election Commission dismissing his candidacy in the Gazipur mayoral election based on him being involved with a defaulted loan.