Kathmandu, 3 December: Police have started investigation into the controversy surrounding the citizenship of Rastriya Swatantra Party Chairman Rabi Lamichhane. Following instructions form Kathmandu District Administration Office, Kathmandu District Police Office has begun the probe.  Lamichhane has been accused of not relinquishing his Nepali citizenship while obtaining US citizenship and of using his old Nepali citizenship even after giving up US citizenship. People's News Monitoring Service