Australia has also voiced concern over Indian government's involvement the killing of a Sikh separatist leader in Canada.

Speaking to reporters in New York on the sidelines of the UN General Assembly session, Australian Foreign Minister Penny Wong said these are concerning reports that India is behind the killing of a Canadian citizen.

Amid a diplomatic standoff with India over the killing of Khalistani leader, Hardeep Singh Nijjar, Canada has updated its travel advisory for Indian illegally occupied Jammu and Kashmir.

It also asked its citizens to avoid non-essential travel to Assam Manipur, Punjab, Rajasthan and Gujarat due to the unpredictable security situation.