
Arsh Dalla, a close aide of Khalistani terrorist Hardeep Singh Nijjar, is one of the most-wanted criminals in India and has been living in Canada with his wife. (Image credit: National Investigation Agency)

In 1997, Nijjar’s asylum plea was rejected by Canadian authorities as they found it fabricated. In 2013, Babbar Khalsa International (BKI) chief Jagtar Singh Tara sent US-based Harjot Singh Birring to Canada to impart training to Nijjar in operating hand-held GPS devices. In return, Nijjar sent one million Pakistani rupees to Tara.
In 2014, Nijjar planned a terror attack on Dera Sacha Sauda Headquarters in the northern Indian state of Haryana. The plan was foiled as India denied entry to Nijjar. In November 2014, Interpol published a Red Corner Notice (RCN) against Nijjar for masterminding more than a dozen cases of murder and terror.
In 2015, Nijjar and Tara planned a terror attack in Punjab and raised a gang in Canada which included Mandeep Singh Dhaliwal, Sarbjit Singh, Anupveer Singh and Darshan Singh Fauji. They were imparted arms training in British Columbia, Canada in December 2015," the Indian agency said.

In April 2021, Nijjar again visited Pakistan as a part of “Baisakhi jatha" but used the visit to get training in arms and explosives for a fortnight. In 2021, Nijjar also tried to get a priest killed at his native village in Punjab, “but the priest survived," according to the dossier.