The World today is reeling under the threats of terrorism which was at one time chosen as easier option by many states to counter or cause turbulence to their enemies states. As terror organizations have graduated in their lethality there is a requirement of having an indepth study of these terror groups. This book is benign effort to index the basic fabric of terror groups. It not only assists the academicians in their intellectual pursuits of study the terror but also gives a much needed insight to a soldier devoted to eliminate terrorist groups. One may find it interesting to find elementary details including socio-economic set up of these terror outfits in such a concise book. Otherwise also the book touches an area which absolutely untouched till date. A comprehensive but light reading of a very complex subject.