Results of voting for the governments of four Indian states showed gains for Mr. Modi’s ruling party, putting him in a strong position ahead of general elections in the spring.
The killing of a Canadian Sikh leader, carried out by what Canada described as Indian government agents, occurred amid widening divisions in the diaspora.
The allegation that India was involved in the killing of a Sikh leader in Canada came after New Delhi had accused Western countries of inaction on secessionist groups.