Hajipur Lok Sabha constituency is one of the 40 Lok Sabha constituencies in the eastern Indian state of Bihar. Hajipur Lok Sabha constituency is reserved for SC. Former Bihar Chief Minister Ram Sundar Das first contested from this seat in 1957 as a Socialist when he was 36 years old, and 57 years later in 2014 for Nitish Kumar's JD-U when he was 93. He lost both those polls but won in 1991 and 2009.