Top Lashkar-e-Toiba bomb expert Abdul Karim Tunda told interrogators that he had come in contact with Pakistan's spy agency ISI after meeting former ISI Chief Hamid Gul in 1995 and was in constant touch with him thereafter. Delhi Police officials said Tunda, a close aide of underworld don Dawood Ibrahim, had met Gul after reaching Pakistan via Saudi Arabia. However, Gul who served as the Director General of ISI from 1987 to 1989, rubbished these claims.