A 24-year-old man named Lucky was fatally stabbed in a revenge killing by four individuals in South Delhi’s Sangam Vihar area on Sunday. The incident is believed to be connected to an earlier murder in 2015, where Lucky allegedly killed a man named Shivam while still a juvenile. Police arrived at the scene around 4:30 PM after receiving a distress call and found Lucky with multiple stab wounds; he was declared dead at the hospital. Authorities have identified two of the suspects as Shivam's brothers and have arrested one, named Sunny. Lucky's family protested outside the police station, demanding swift action against the remaining suspects. Investigations are ongoing, with police assuring strict measures will be taken against all involved.