The chargesheet SIT filed before the designated court in Madras under Section 173, CrPC, is clear about the killers movements: "On 28/4/1991, the following LTTE conspirators assembled in Jaffna and Pottu Amman briefed them and directed them to act according to Sivarasans orders: Sivarasan, Dhanu, Subha, Nehru, Santhan, Shankar, Hariayya, B. Ruban and Keerthi. On 30/4/91 this group was seen off by Pottu Amman and Akila. They were received by Shanmugham and other LTTE cadres on the Indian shore in early morning of May 1, 1991." The chargesheet goes on to say that Sivarasan and his team waited in Madras from May 1onwards. Rajivs visit was announced by the AICC only on May 19. The upshot is that the Tigers had a very clear picture of Rajivs campaign schedule and this vital information, say investigating officials, could only have been passed on by someone having access to the AICC headquarters in Delhi or top-level officials of security agencies.