ISI is trying to revive Khalistan movement through radical Sikhs settled abroad. The extremist Sikhs also organise get-togethers in Gurudwaras and hold demonstrations in front of Indian missions abroad on anniversaries of Operation Blue Star, carnage of Sikhs in 1984 in Delhi, where they chant pro-Khalistan and anti-India slogans. The videos of these demonstrations, as well as several concocted videos are sent to India to arouse the secessionist sentiments of Sikhs.
The important Sikh secessionist organisations include Babbar Khalsa International (BKI) which was declared terrorist organisation by European Union, United States, Canada, United Kingdom and India. UK based International Sikh Youth Federation (ISYF), Khalistan Commando Force (KCF) which carried out several terrorist incidents in India. All India Sikh Student Federation (AISSF), Bhindrawala Tigers Force of Khalistan (BTFK) constituted in 1984 by Gurbachan Singh Manochahal who had links with ISI. Besides these outfits there are Khalistan Liberation Force (KLF), Khalistan Liberation Army, Khalistan Zindabad Force (KZF), Dashmesh Regiment, Shaheed Khalsa Force just to name few. Out of these terrorist organisations several other groups also emerged because of personal differences between the Sikh leaders while few splinter groups came into existence because of pressure from ISI.
The separatists allege that Hindus want to submerge Sikh religion into Hinduism to end the separate identity of Sikh religion. Sikhs also mention that Operation Bluestar damaged the psyche of Sikhs and the perpetrators of anti-sikh riots of 1984 in Delhi are still not punished. Khalistanis also allege that creation of Chandigarh as Union Territory is against the interests of Punjab. Claim of Harayana on Sutlej waters is unjustified and Punjab being an agrarian region all water should be utilized by the state. Separatists also mention that jokes on Sikhs are humiliating and must be stopped.