Das, a former chief minister, has an image of being an honest politician among people.
There are other elderly candidates, but none in Das' league.
JD-U president Sharad Yadav, in his late 60s is another senior citizen who is seeking re-election to the Madhepura seat. He is contesting against RJD candidate Pappu Yadav, a controversial former MP.
Another sitting JD-U MP Ranjan Prasad Yadav, in his early 70, is seeking re-election to the Patliputra seat.
The RJD has fielded Raghunath Jha, in his early 70s, from West Champaran. Former union minister and RJD candidate to the Araria seat is Mohammad Taslimuddin and he is in his late 70s.