[2] The seat fell vacant following the death of incumbent Member of Parliament Shamsuddin Ahmed Ishaq.
[6] Khokon was sued in the murder case of Narsingdi Mayor Lokman Hossain in November 2011 but was cleared by the courts.
[11] On 25 April 2012, Khokon's residence was surrounded by police to prevent him from participating in Bangladesh Nationalist Party protests.
[14] In May 2017, Khokon was sent to jail in 10 arson cases from 2016 when the Bangladesh Nationalist Party was waging an anti-government movement.
[16] On 13 June, Bangladesh Supreme Court Justice Hasan Foez Siddique upheld his bail in five cases.
[20] On 28 November 2019, Khokon received bail in a case over vandalism and assaulting police officers near the High Court along with Hafizuddin Ahmed.