Ganesh was arrested for allegedly murdering Ravi, police said, adding that both were residents of Haiderpur in north-west Delhi.
According to police, Ravi used to eve-tease a girl with whom Ganesh was romantically involved. The Haiderpur neighbours had got into an altercation about six months back over the issue but the matter was resolved.
However, according to police, Ganesh was harbouring a grudge against Ravi and yesterday called him near a tubewell in Haiderpur where an argument ensued between them.
The victim's father, who claimed to have seen Ganesh assaulting his son, called police and Ravi was taken to hospital where he later succumbed to his injuries.
Initially, an attempt to murder case was registered in this connection at Shalimar Bagh police station, but a murder charge has now been slapped on the accused.