Chandigarh: In a chilling turn of events last Friday, a routine walk home turned into a nightmare for a Class-11 student in Chandigarh’s Sector 50. The victim, critically injured in a brutal stabbing, now battles for his life at PGI — the victim of a violent fallout from a school washroom brawl.The attackers? Two juveniles, now in police custody, who allegedly ambushed Shivam around 2:15 pm, armed with knives and riding a Splendor motorcycle. The motive: revenge. The method: ruthless.The Sector 49 police launched a full-scale investigation, scouring footage from over 110 CCTV cameras and digging through offender records. What they uncovered was a trail of tension that began days earlier inside school walls — and ended in blood on the streets.The scene was first discovered by a neighbour, Nandini, who ran to inform victim’s father, Sunil Kumar, a tailor by profession. Rushing to the spot with a taxi driver, Sunil found his son bleeding profusely near the dividing road between Sector 49 and 50. The victim, barely conscious, named his attackers — three unknown boys on a two-wheeler who tried to kill him.Police later recovered a dagger knife, a motorcycle, a stone, and the clothes worn by the juveniles — grim evidence of a premeditated attack.