Yes, I will recommend you to fill the forms for them. After that you can print and courier the forms to your parents for their original signatures.Thanks so much for the info. Also they say that we have to submit the forms by Oct 5th. I live in Mississauga and parents are in India. So I have to send them the filled forms and they have to sign them and return back right. Do they have to provide any documents from their side?
You will require following documents from your parents
1. Signed forms
2. Copies of Passports
3. Marriage Certificate
4. Photographs as per IRCC specifications
Do not forget to provide Use of Representative (IMM 5476) form. This will require your parent's signature.
The details are in the checklist https://www.canada.ca/content/dam/ircc/migration/ircc/english/pdf/kits/forms/imm5771e.pdf