The US also remains in regular contact with the Canadian government, White House press secretary Karine Jean-Pierre said on Friday.
His remarks came after the US said on Thursday that it supports Canada's efforts to investigate allegations of India's involvement in the killing of Nijjar, observing that no country can get any "special exemption" for such kind of activities.
Refusing to respond to questions on the evidence of Canadian allegations, Sullivan said he is not going to speak to either intelligence or law enforcement matters from this podium.
India has strongly rejected Trudeau's statement made in the Canadian Parliament and said "allegations of Government of India's involvement in any act of violence in Canada are absurd and motivated."
"India risks becoming one of the world's main generators of instability, atrocities and violence because of the massive scale and gravity of the violations and abuses targeting mainly religious and other minorities such as Muslims, Christians, Sikhs and others. It is not just individual or local, it is systematic and a reflection of religious nationalism," he said.
His comment comes weeks after he met Prime Minister Narendra Modi on the sidelines of the G20 Summit in New Delhi during which both the leaders discussed strengthening trade and infrastructure relations.
Australia has described Canada's allegations about India's involvement in the killing of a Sikh separatist leader as 'concerning' and said Canberra is 'monitoring these developments closely' and has raised the issues with its Indian counterparts.
A US expert has termed Canadian Prime Minister Justin Trudeau's claim of a "potential link" between Indian government agents and the killing of a Khalistani leader a "shameless and cynical action" and urged the United States not be part of it.
Kandula, 23, was struck by a police vehicle driven by Officer Kevin Dave when she was crossing a street in Seattle on January 23.
Coming on the heels of two successful bilateral meetings between Prime Minister Narendra Modi and President Joe Biden -- the Official State Visit of the Indian leader here in June and a bilateral meeting in New Delhi in September -- USCIRF in its announcement of the meeting said the Congressional hearing is on how the US government can work with the Indian government to address violations.
The Biden administration has assured the Indian government of a quick investigation into the incident and bring to justice the police officers who were responsible for it.
A US federal judge in Houston has declared illegal a federal policy that prevents the deportation of hundreds of thousands of undocumented immigrants, including hundreds of Indians, brought to the US as children, but noted that the government can continue to process renewals of its current recipients.
'India is a rising power and it'll become one day a great power. I think the diplomatic skills, the execution of a flawless G-20 sends the message that India has arrived on the scene and it is becoming a great power'
The US hails the landmark 'India-Middle East-Europe Economic Corridor' which will usher in a new era of connectivity from Europe to Asia and will stimulate economic growth across the two continents.
Indian American Nikki Haley is the only Republican presidential aspirant who can defeat President Joe Biden in the November 2024 polls, a CNN poll has revealed.
The United Nations considers requests from countries to change their names as and when the world body receives them, a top United Nations official has said, amid a row over President Droupadi Murmu's G20 dinner invites referring to her as 'President of Bharat' instead of 'President of India'.
United States President Joe Biden is all set to visit India and is 'very excited' about the important initiatives he will be championing at the G20 Summit in New Delhi, according to senior White House officials.
Republican presidential candidate Vivek Ramaswamy has vowed that he will pardon all peaceful January 6 protesters if he gets elected as the next United States president in 2024.
It is for China to decide what role it plays at the G20 summit in New Delhi, a top US official has said, asserting that if Beijing wants to come in and be a "spoiler", that option is available to it.
The US President will travel to India on Thursday to attend the G20 Summit, national security advisor Jake Sullivan told a press conference at the White House.