Is it necessary to have the course length more than sixteen months for visa purposes in Canada for a Master's?

No, your course does not need to be longer than sixteen months for visa purposes in Canada.

A study permit is required for any program longer than six months. If your program is six months or less, you do not need a study permit, but you must complete your studies within your authorized stay.

For most Master's programs (typically 1-2 years), a study permit is necessary. Course length requirements for the visa are subject to change. If you need help with your study permit application, contact your LeapScholar counsellor.