Sonu, a resident of Kanarsi who was accused of killing a class ten student in October last year and carrying a reward of Rs 5,000 for his arrest was apprehended yesterday at Dankaur town, they said.
The victim Ashu Balmiki was killed by Sonu over his love affair with a local girl, police said.
A case under relevant sections of IPC had been registered against the accused following the complaint by the victim's parents, they added.