RJD's two sitting MPs Jagdanand Singh, 70, and Raghuvansh Prasad Singh, 67, are seeking re-election from the Buxar and Vaishali constituencies.
Other senior citizens fielded by the RJD are Anwarul Haque, who is in his 70s, from Sheohar and Magni Lal Mandal, who is in his 60s, from Jhanjharpur .
Congress candidate and sitting MP from Sasaram Meira Kumar, 68, is Lok Sabha speaker. Another sitting Congress MP is Asrarul Haque, 70, is seeking re-election from Kishanganj.
There are more.
The BJP has fielded its sitting MPs Hukum deo Narain Yadav, and Bhola Singh, both in their mid-70s from Madhubani and Begusarai. Another BJP sitting MP is Nikhil Kumar Choudhary, in his early 70s, is seeking re-election to the Katihar seat.