IIT Bombay is known for its 4 Year, 5 Year & 2 Year programmes for which the entry is through the Joint Entrance Examination – Advanced and Graduate Aptitude Test in Engineering. It offers degrees such as: Bachelor of Technology, Four Year Bachelor of Science, Five Year Master of Science, 2 or 3 Year Master of Technology, and a few others. It also has a comprehensive graduate program offering doctoral degrees in Science, Technology, Engineering and Mathematics. It currently has a total of 15 academic departments, 20 centres, a school of excellence and four interdisciplinary programs including a Management Program.