NEW DELHI: A 29-year-old man was stabbed to death while his sister and another person were critically injured after they were attacked by two minors in west Delhi’s Khyala on Sunday night. Police suspect it to be a revenge attack over a previous confrontation following the alleged harassment of the victim’s sister by one of the accused. Additional DCP (west) Piyush Jain said one of the minors was apprehended while the other was absconding.Police were informed about the incident around 3.15am by a govt hospital in Raghubir Nagar, where three injured were brought in. “Police found that one of the victims, a 29-year-old man, succumbed to multiple stab wounds during the treatment. His 23-year-old sister and a 47-year-old man who tried to intervene were also admitted with serious injuries and are undergoing treatment,” said a senior officer.In her statement, the victim’s sister said the attackers repeatedly stabbed her brother with a knife. When she tried to intervene, the attackers turned on her and the bystander who tried to stop them. Both were also stabbed before the attackers fled in the direction of a nearby gurdwara.Following her statement, a murder case was registered under Section 103 of Bharatiya Nyaya Sanhita at Khyala police station, and an investigation is underway.Police said that four months ago, the victim confronted one of the minors for allegedly harassing and abusing his sister. During that confrontation, he reportedly slapped the boy, who later narrated the incident to his friend. Together, the two allegedly plotted the revenge attack.“On the night of the incident, the two juveniles allegedly went to the victim’s fourth-floor residence, called him outside and stabbed him multiple times. Though bleeding and seriously injured, he managed to run down the stairs before collapsing on the road. His family lives on the third floor of the same building,” an officer said. The victim used to work as a delivery company executive and was the sole breadwinner of his family.