Vancouver, (British Columbia), April 01: A prosecution witness in the Air India bombing trial said on Tuesday he donated money to a plot by Sikh militants to kill Indira Gandhi. The man, whose name is shielded by court order, is a witness against Ripudaman Singh Malik, one of two Sikh militants charged with murder in connection with the 1985 attacks on an Air India plane that killed 331 people. The defense is attacking the man`s claim that he turned down Malik`s request that he carry a "time bomb" in a suitcase to Vancouver airport because he did not support the use of violence in the movement for an independent Sikh homeland. Under questioning by Malik`s attorney, the man said he gave C$300 to help kill Gandhi at a 1984 meeting in Vancouver of Sikhs who wanted revenge for India`s attack that year on the Golden Temple in Amritsar.