[2][3] Suman was a legal affairs secretary of the Central committee of Bangladesh Awami Jubo League until he was suspended from his role in August 2021.

[5][6] In 2024 Bangladeshi election, as an independent candidate, he beat his closest opponent, Md.

Mahbub Ali, the incumbent 2-time parliamentarian from Awami League and a former state minister for civil aviation and tourism, by nearly 100,000 votes.

[7] On 6 August 2024, the day after Sheikh Hasina fled the country because of 2024 Non-cooperation movement, President Mohammed Shahabuddin dissolved the 12th Jatiya Sangsad.

Earlier, two murder cases were filed against him at the Mirpur and Adabar police stations.