Warning: This episode contains descriptions of violence.The relationship between two democratic allies fell to its lowest point in history this week, after Canada accused India of assassinating a Sikh community leader in British Columbia in June.Mujib Mashal, The Times’s South Asia bureau chief, explains this stunning accusation — and what India’s reaction to it tells us about the era of its leader, Narendra Modi.Guest: Mujib Mashal, The New York Times’s bureau chief for South Asia.Background reading: Prime Minister Justin Trudeau of Canada said agents of India had assassinated a Sikh community leader, Hardeep Singh Nijjar, who was fatally shot in British Columbia in June.Mr. Nijar was a prominent advocate of the creation of an independent Sikh nation that would include parts of India’s Punjab State.The charge, which the Indian government has strongly rejected, may fuel a rift between Canada’s Sikhs and Hindus.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.