Teenager killed, another injured in Delhi wedding stabbing; all accused held

• A 17-year-old boy, Nikhil Yadav, was killed and another, Sunny, injured in a stabbing incident at a Delhi wedding.
• The incident occurred when Nikhil and Sunny tried to pacify two groups quarrelling over food arrangements.
• Five people, including four minors, have been apprehended in connection with the stabbing.
• Nikhil's family claims he was mistaken for being involved in the fight while trying to intervene in a scuffle.
• Police have recovered the knife used in the crime and registered a case; the body has been sent for post-mortem.