Three juveniles have also been apprehended in the case, they said.
On July 27, the police were informed that a man had been admitted to SGM Hospital with stab injuries. The man identified as Ram Babu was later declared brought dead.
The culprits were found after the deceased's stolen phone was traced to the accused, police said.
A raid was conducted and a juvenile was apprehended today. He led the police to his accomplices, including two other minors, they said.