IELTS
IELTS is the International English Language Testing System. It measures ability to communicate in English across all four language skills &ndash listening, reading, writing and speaking &ndash for people who intend to study or work where English is the language of communication.

TOEFL
TEST OF ENGLISH AS A FOREIGN LANGUAGE (TOEFL)
If you are planning to study abroad, the TOEFL test is the one test that can take you anywhere.

GRE
The Graduate Record Examination (GRE) General Test is designed to provide graduate schools with common measures for comparing the qualifications of applicants. The GRE is a computer-based test.

GMAT
The Graduate Management Admission Test (GMAT) is a Standardized test that measures verbal,mathematical and analytical writing skills.