Hi there,
Are you looking to apply for a study permit under the NSE (Nigerian Student Express) stream or through the Standard Application Process? This video contains all the application checklist with Visa Officer Instructions for those applying from Nigeria.
Below are relevant links that would help your application process.
Good luck
Passport Photograph Specifications
https://www.canada.ca/content/dam/irc...
Passport Information
https://www.canada.ca/en/immigration...
Application Checklist pdf
https://ircc.canada.ca/english/pdf/ki...