(This story originally appeared in on Sep 16, 2016)

NEW DELHI: The world witnessed 11,774 terror attacks in 2015, in which 28,328 people were killed and 35,320 injured. India was the fourth worst-affected country after Iraq, Afghanistan and Pakistan, with 43% of 791 attacks in the country carried out by Naxalites. A total of 289 Indians died in terror strikes.Data collected by the National Consortium for the Study of Terrorism and Responses to Terrorism contracted with the US state department revealed that Taliban , Islamic State and Boko Haram were the three deadliest terror groups globally. They were followed by CPI(Maoist), a banned outfit.The CPI(Maoist) was responsible for 343 terror attacks in 2015, killing 176 people. Taliban were involved in 1,093 strikes in which 4,512 people lost their lives, IS launched 931 attacks which claimed the lives of 6,050 people and Boko Haram was involved in 491 attacks killing 5,450 people. Kurdistan Workers' Party (PKK), which rounded off the top five in the list, was involved in 238 strikes, killing 287.Over half the terror attacks in India took place in four states — Chhattisgarh (21%), Manipur (12%), J&K (11%) and Jharkhand (10%). Chhattisgarh, which has been hit hard by Left-wing extremism, reported a doubling of terror attacks in 2015 — from 76 in 2014 to 167.The report said there was great diversity in the perpetrators/terrorist groups involved in attacks in the country, with 45 outfits active across the country. The Naxals alone accounted for 43% of terrorist attacks in India last year. The report said the number of people kidnapped/taken hostage by terrorists and insurgent groups in India almost tripled in 2015, increasing to 862 from 305 in 2014. Of this, Naxals alone kidnapped/took hostage 707 persons last year compared with 163 in 2014. In 2014, there were no attacks in which 50 or more people were kidnapped or taken hostage while in 2015, there were seven such attacks, all of them attributed to Maoists.Home ministry data also said that between 2010 and 2015, 2,162 civilians and 802 security personnel were killed by Naxals. Most of the dead were 'tribals', often branded as police informers.The report said that while India ranked high among countries witnessing terror attacks, the lethality of these attacks were relatively low. The number of perpetrators/terrorists killed in attacks in India doubled in 2015, accounting for 20% of all deaths compared with 7% in 2014. In all, 6,924 terrorists (24%) were killed in the attacks perpetrated by them worldwide. The use of bombs/explosions as tactic for attacks was less prevalent in India than worldwide.