Hardeep Singh Nijjar

The diplomatic rift has suddenly grown more stark as Canada amplifies its accusations that India is directing lethal operations abroad.

By Anupreeta Das and Matina Stevis-Gridneff

The Canadian police said the Indian government had orchestrated homicides and extortion in Canada to intimidate Sikh separatists. India, in return, kicked out Canadian diplomats.

By Matina Stevis-Gridneff

Prosecutors say that Nikhil Gupta, at the behest of an Indian government official, tried to engage a hit man to kill an American citizen who is a Sikh separatist.

By Maia Coleman

India’s external spy agency, the Research and Analysis Wing, has long been accused of tapping into criminal networks to carry out operations in South Asia. Is the agency now doing similar operations in the West?

By Mujib Mashal and Suhasini Raj

The killing of Hardeep Singh Nijjar, a Sikh nationalist who had sought a separate state in India and was viewed as a terrorist by New Delhi, set off diplomatic tensions between Canada and India.

By Vjosa Isai

Avani Dias said that she had been denied a visa renewal for weeks because of her reporting on the Sikh separatist movement. Indian officials disputed her account.

By Sameer Yasir and Yan Zhuang

After a murder in Canada, a sting operation, prompted by an explosive tip through an unexpected channel, rushed to prevent another killing.

By Nicole Hong

The charges are rooted in a decades-old dispute over the demand by some Sikhs for a sovereign state known as Khalistan carved out of northern India.

By Sameer Yasir

Officials in the United States and Canada have described two assassination attempts: the killing of a Sikh leader in British Columbia and a plan to murder an activist in New York.

By Derek M. Norman

An indictment in a plot against a Sikh separatist in the United States provides details in a killing that has strained relations between Canada and India.

By Norimitsu Onishi