The bodies of a couple and their daughter were found with stab injuries at their residence in Kishangarh area of Vasant Kunj in southwest Delhi on Wednesday, police said.
The police are investigating the matter.
The deceased were identified as Mithilesh and Seeya, a couple in their 40s, and their 16-year-old daughter Neha. According to media reports, their son was attacked too. He has suffered minor injuries and the police are currently questioning him.
It is believed that the incident took place at 5 am. It was the family’s domestic help who found out about the attack and alerted neighbours.
The Delhi Police are also going through the CCTV footage from the neighbourhood to find any leads in the case.