In reaction to various geo-political ("see Indian intervention in the Sri Lankan Civil War") and economic factors, from August 1983 to May 1987, India, through its intelligence agency Research and Analysis Wing (RAW), provided arms, training and monetary support to six Sri Lankan Tamil insurgent groups including the LTTE. During that period, 32 camps were set up in India to train these 495 LTTE insurgents, including 90 women who were trained in 10 batches. The first batch of Tigers were trained in Establishment 22 based in Chakrata, Uttarakhand. The second batch, including LTTE intelligence chief Pottu Amman, trained in Himachal Pradesh. Prabakaran visited the first and the second batch of Tamil Tigers to see them training. Eight other batches of LTTE were trained in Tamil Nadu. Thenmozhi Rajaratnam "alias" Dhanu, who carried out the assassination of Rajiv Gandhi and Sivarasan—the key conspirator were among the militants trained by RAW, in Nainital, India.