The electronic visa was back in order on Wednesday, an official told The Associated Press on condition of anonymity as he was not authorized to speak to reporters.

The move could ease tensions between the two countries that swapped accusations and expelled each other's diplomats with India introducing a visa ban on Canadian nationals.

A diplomatic spat has erupted between the two countries after Prime Minister Justin Trudeau said in September that there were "credible allegations" of Indian involvement in the killing of Hardeep Singh Nijjar in Surrey, B.C.

Nijjar, a 45-year-old Sikh activist and plumber, was killed by masked gunmen in June in Surrey, outside Vancouver.

New Delhi's worries about Sikh separatist groups in Canada have long strained the relationship between the two countries, despite maintaining strong defence and trade ties.

Last month, India eased the ban and resumed services for entry, business, medical and conference visas for Canadian nationals.

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