Chhapra Lok Sabha constituency was in Bihar and it existed until 2008, after which it was replaced by Saran Lok Sabha constituency, when delimitation was done.
Presently, Chapra Lok Sabha constituency comprises seven Vidhan Sabha (legislative assembly) segments.
In 2004, Lok Sabha polls were countermanded in Chapra (छपरा) following allegations of rigging.
[5][6][7][8] Re-poll was done on 31 May 2004.
[9][10][11][12][13] Lalu won the elections after the re-poll.