Data is organisation-to-organisation links of terrorist organisations operating in the Indian State of Jammu & Kashmir. Four 1-mode matrices persons by persons for years 2000 (5 x 5), 2001 (25 x25), 2002 (23 x 23), 2003 (18 x 18). Undirected, binary ties are "co-occurrence" mentions of terrorist organisations together in various sources e.g. on-line