I first created GCkey first after you can clearly see 'apply study permit' tab click it.
-Then they ask few questions if you're eligible to apply for study permit.
-If you're eligible, it navigate you to study permit page there you have to fill application pages through ADOBE ACROBAT and upload your documents.
-Do not need to print out application form to sign it.
-For online applicants we need to sign electronically after fill all documents.
-Digital Passport size Photograph.
-Make sure submit all the hell of your documents, reduce the file sizes using online sites like
https://www.ilovepdf.com/
-Merge all your Offer letter+IELTS+GIC+ACADEMIC RECORDS with TRANSCRIPTS in ONE PDF because each section it upload only 4MB.
-Merge all financial documents in ONE PDF like 1st sem fee statement+GIC certificate+Loan/Fixed deposit certificate+Charted accountant certificate+ whatever supporting documents you have.
-In additional documents Upload SOP(include strong home ties that you will definitely have to leave Canada after studies and return home country) and LOE(if you have).
-After upload everything, you can see tab 'Next' in the bottom where they ask you to Agree and Sign Electronically.
-Later you have pay study permit fee $150 CAD by using visa/debit/master card.