Ripudaman Singh Malik is on trial along with Ajaib Singh Bagri

The witness said earlier one of the accused in the case, Ripudaman Singh Malik, asked him in 1984 to deliver a bomb to Vancouver airport.

He refused to take the bomb but said he gave $300 (Canadian) for a plot to have the prime minister murdered.

He said he was outraged by the Indian army attack on the Golden Temple.

Activist meetings

The assault on the Sikh Golden Temple at Amritsar ordered by the Indian authorities in 1984 angered Sikhs throughout the world.

"It was Indira Gandhi who ordered the attack. She should be killed, not other people," the witness told the court, Reuters news agency reports.

The retired 73-year-old Vancouver man also said he attended several meetings of Sikh militants in British Columbia.

Ripudaman Singh Malik is on trial with Ajaib Singh Bagri for a pair of bombings in 1985 that killed more than 330 people.

One bomb exploded on an Air India jumbo jet over the north Atlantic killing everyone on board.

The witness, whose name is shielded by a court order, said earlier in the week that Mr Malik had asked him to deliver an attache case containing explosives to Vancouver's airport.