The Japanese-Language Proficiency Test (JLPT) has been offered by the Japan Foundation and Japan Educational Exchanges and Services (formerly Association of International Education, Japan) since 1984 as a reliable means of evaluating and certifying the Japanese proficiency of non-native speakers.
NAT test is held six times in a year with a gap of two months after each exam. The Japanese Language NAT-TEST is an examination that measures the Japanese language ability of students who are not native Japanese speakers. The tests are separated by difficulty (five levels) N1, N2, N3, N4 & N5.
Top- J is not as popular as NAT & JLPT but still we prepare our students for the Top-J test also. Unlike NAT & JLPT this test contains the questions from the whole syllabus.