Even though the movement has waned over the years, it still has some support in Punjab and beyond, including in countries such as Canada, the US and the UK, which are home to a sizeable Sikh diaspora.

Source: https://www.theguardian.com/world/2023/apr/23/indian-police-arrest-sikh-separatist-preacher-amritpal-singh-after-weeks-on-run

The insurgency was eventually brought under control and the Khalistan movement’s most vocal advocates are now among the large Sikh diaspora, particularly in Canada, Britain and Australia.

Source: https://kuwaittimes.com/blame-and-accusations-in-dead-sikh-separatists-village/