"The US State Department's National Consortium for the Study of Terrorism and Responses to Terrorism has found that going by the number of terror attacks and the number of killings of innocent citizens every year from 2012 until now, the big-five terror group consists of the IS, Taliban, Boko Haram, al Qaeda, and the Communist Party of India (Maoist)."
January 1, 1970
https://en.wikiquote.org/wiki/Communism_in_India