has33b you may visit CIC website about the concept of 'Dual Intent'.
In short, it means the intentions by a foreign student during initial stage: 1- To study (Temporary Resident) 2- To become permanent resident through available streams.
The “dual intent" is not the ground for refusal of the study permit.
All that critical is to make it sure to visa officer that you wouldn't breach any immigration law which is the actual scope of any visa application.
Immigration laws could be neglected in following ways:
For example,
Your family ties may lead to let you make money rather than studying.
Your course of study may not be inline with your previous studies which may not present you a genuine student.
Your financial situation is not enough satisfactory to support your stay in Canada.
According to law; everything is ideal as follow:
You came to study (Its 1st Target) >>> You studied (1st Target achieved) >>> You apply for PR (2nd Target) >>> If 1st Target achieved you get PR 8)