A 23-year-old man was on Thursday stabbed to death by the family of his girlfriend in the Khayla area of outer Delhi.

According to the police, the deceased, Ankit, was in a relationship with a 20-year-old girl. However, her family was against the relationship and had warned Ankit to end it.

On Thursday night, Ankit had an argument with the family of the girl after which her mother, father, brother and maternal uncle stabbed and slit his neck.

Passers-by caught the maternal uncle from the spot and thrashed him. Except the minor, all others have been arrested for murder.

"The motive behind the murder is clear as his purse and mobile were still on him. We have registered a case under Section 30 (punishment for murder). We are in the process of obtaining CCTV footage from the area, even as locals are being questioned," said the police, adding that there could be other angles too to the murder such as a robbery attempt or personal enmity.

Ankit was a photographer while his girlfriend is a college student.

Police have arrested the woman’s father, mother and uncle.