The five, all members of the GJM's student wing Vidyarthi Morcha, have been remanded in 14 days' judicial custody, Assistant Public Prosecutor Pankaj Prasad said.
The five are: Kashab Raj Pokhrel, Alok Kanta Thulung, Kismet Chhetri, Dinesh Gurung and Puran Thami.
Madan Tamang was hacked to death in broad daylight on May 21, 2010 when he was overseeing arrangement for a public meeting he was to address.
