Operation Sindoor, a coordinated cyber campaign targeting critical Indian sectors, involved state-sponsored APT activity and hacktivist operations. The campaign utilized spear phishing, malicious scripts, website defacements, and data leaks. APT36, a Pakistan-aligned threat group, deployed advanced tactics including the Ares RAT for cyber espionage. The operation targeted defense, government IT, healthcare, telecom, and education sectors. Hacktivists conducted parallel disruptive attacks, using DDoS and defacements. The campaign revealed a convergence of cyber espionage and ideological warfare, showcasing the evolution of modern cyber conflicts. It resulted in data exfiltration, service disruptions, and website defacements, significantly impacting India's cybersecurity landscape and public trust.