State of Siege: 26/11 is an Indian Hindi-language action thriller web series on ZEE5, directed by Matthew Leutwyler and Prashant Singh and produced by Abhimanyu Singh and Roopali Singh. The series is based on journalist Sandip Unnithan's book Black Tornado: The Three Sieges of Mumbai 26/11 about the military's Operation Black Tornado during the 26/11 terrorist attacks. The series features Arjan Bajwa, Arjun Bijlani, Jyoti Gauba, Vivek Dahiya, Tara Alisha Berry Mukul Dev and Naren Kumar in prominent roles. The series was launched on 20 March 2020 on ZEE5.