Three Indian nationals accused of murdering Sikh activist Hardeep Singh Nijjar are due to face court Tuesday over the killing that triggered a major diplomatic rift with India. Karanpreet Singh, Kamalpreet Singh and Karan Brar were arrested in Edmonton last week and are scheduled to appear in Surrey Provincial Court at 9:30 a.m. PT. Police who announced the arrests last week said investigations about a possible connection to India's government continue. Nijjar was a key organizer of unofficial referendums for an independent Sikh state in India and was regarded by India's government as a terrorist. High Commissioner Sanjay Kumar Verma is to address the Montreal Council on Foreign Relations on the theme of current and future relations between India and Canada.