New Delhi, April 5 -- A day after a 24-year-old man allegedly stabbed a 17-year-old girl before killing himself, the girl succumbed to injuries on Saturday. Police said the two were friends for two years, and it is suspected that they had a fight after which the man attacked her on Friday, went home and set off an LPG cylinder blast, killing himself. The minor, a resident of Old Seemapuri, is survived by her parents and two siblings. Her parents said she had appeared for class 10 examinations and wished to join a coaching centre to prepare for competitive exams. The suspect was a delivery executive with an e-commerce company and lived in the New Seemapuri area. A senior police officer said, "On Friday, the girl had called the man near a temple to resolve a fight. As per CCTV footage, they were seen talking normally, but after some time, an argument broke out. The man pulled out a knife from his pocket and stabbed the girl multiple times. She collapsed on the street, and he ran away." Deputy commissioner of police (Shahdara) Rajendra Prasad Meena said a call about the incident was received around 5.30pm. "The girl sustained multiple stab injuries. She was admitted to GTB Hospital. She was unfit to give a statement and died on Saturday. A case of murder has been lodged," the DCP said. Around 6.20pm on Friday, police received a fire alert at a house in Seemapuri. The DCP said the suspect ran to his house in C Block Seemapuri, shut the doors and put an LPG cylinder on fire. His mother, a single parent, was out for work at the time of the incident. Both families were unaware of their friendship or a fight. "She told me yesterday that she wanted to meet a friend. I didn't know she was going to meet him. I knew him, but I didn't know they were close. I think more people are involved in the stabbing. Police should properly probe," the girl's mother said. Her father said she was so brutally attacked that she could not even talk to them. "We want justice for our daughter," he added. The man's mother, a single parent, said, "My son was my everything. My neighbours told me that my house was on fire. When I reached, I saw my son's charred body inside. I don't think he killed himself. People are accusing him of stabbing someone, but he never hurt anyone," she said. Police said a probe is underway....