The law, which saves religious minorities like Hindus and Christians in neighbouring countries, sparked outrage over its exclusion of Muslims.

Jaspal Atwal, a man convicted of attempted murder and once called a "terrorist" by a Canadian judge, was not vetted before he was added to the guest list of a dinner being held by Prime Minister Justin Trudeau.

Prime Minister Justin Trudeau weighed in from India on Wednesday on a ruling earlier this week upholding a controversial ban on Sikh ceremonial daggers from being brought into Quebec's National Assembly.