Not just Canada, there are some Sikhs even in India who are questioning and asking the reason behind the killing of Khalistani Extremist Hardeep Singh Nijjar.

Hundreds of Sikh activists on Friday staged a demonstration outside the Golden Temple in Amritsar, in the northern Indian state of Punjab, demanding punishment for the killers, as reported by Reuters.

Although Canadian PM Justin Trudeau has alleged India's involvement in Nijjar’s killing but India has blatantly denied any such involvement.

But the protesters, Holding posters of Nijjar, and placards often with English language slogans, they’re calling on Delhi to stop extrajudicial operations against separatists seeking an independent state in Punjab or part of that majority-Sikh region that spans India's border with Pakistan.

"It is time and opportunity for New Delhi to talk with Sikh leadership," said Paramjit Singh Mand, a leader of Dal Khalsa, the group, which is advocating for a separate Sikh homeland and organized the protest.

Sikhs make up just under 2% of India's population, according to the government's most recent census, with Sikhism the country's fourth most prevalent religion after Hinduism, Islam and Christianity. However, Sikhs also make up the majority of the population in the Punjab area of northern India and southern Pakistan. Some seek an independent nation known as Khalistan, to be located on some or all of this territory.

Amid Canada's allegations, Kanwar Pal, political Affairs of the Separatist Group said, "We thank the Canadian government for exposing the Indian design, how India is operating on foreign soil, intervening in Canadian affairs."