Indian Prime Minister Narendra Modi is focussed on combating Sikh separatism, despite its scant support among the country's small religious minority, due to security and political concerns, officials and experts say. The movement for a Sikh homeland in northern India, crushed decades ago, has burst onto the global stage in recent months as the United States and Canada accused Indian officials of involvement in assassination plots against Sikh separatist leaders in North America. New Delhi denies any connection to a June murder in a Vancouver suburb but has announced an investigation into U.S. concerns about an alleged plot in New York.