Many Shakyas migrated to Nepal and some other regions from Indian subcontinent after the uprsing towards Shakya royals by the Hindu Brahmins in ancient time.Some Shakays remained in india where you also find many Shakays and Newari descendants.I am not spreading propaganda or bias information but Newars originaiated from indian subcontinent mainly Maghada and Vaishali in ancient time.Shakays are also chhteriya bungsa accoding to the history because Siddhartha Gautama was Chettreiya kul.