[2][3] The by-election was held as the result of the death of the sitting member, Subas Chandra Nembang, chairman of the Constituent Assembly and vice–chair of the Communist Party of Nepal (UML), on 12 September 2023.

[4] It was held alongside by-election in the provincial assembly seat of Bajhang 1 (A).

[5] CPN (UML)'s Suhang Nembang was elected in the by-election, succeeding his late father.

[6][7] First elected to Rastriya Sabha, the upper house of the parliament of the then-Kingdom of Nepal, in 1991, Nembang served as the Minister of State for Law, Justice, Parliamentary Affairs and General Administration from 1994 to 1995 during the premiership of Man Mohan Adhikari.

He served as Speaker of the re-instated Pratinidhi Sabha in 2007 and was the Chairman of the Constituent Assembly from 2008 to 2015.