Graduate Aptitude Test in Engineering or GATE is a standardized online aptitude test for admissions in post graduate level studies. GATE exam is conducted by Indian Institute of Science and Indian Institutes of Technology jointly. GATE is conducted in 23 disciplines. GATE qualification is mandatory for selection in most of the government institutes for higher studies. Many private colleges and universities are also using GATE scores for admissions. GATE score is valid for three years from the date of GATE results announcement. GATE eligibility, syllabus, question patterns are available on the official website. Any candidate preparing for GATE can also refer to Gate study materials and GATE mock tests widely available.