Thanks for your response!
I think what you said does makes sense however I have couple of specific questions regarding that:
1. Upload the new Canadian passport to the ceac portal. Also upload your citizenship certificate.
While uploading, should I select document type - OTHER OR PASSPORT BIOGRAPHIC PAGE? the reason why I am asking is because I already have uploaded my Indian passport using PASSPORT BIOGRAPHIC PAGE when I applied.
2. Take both your Canadian and Indian passport to the doctor for medical. Inform the doctor that your Canadian passport is the one you will be using going forward.
Noted
3. Take an amended DS-260 with your nationality updated as Canadian, and your new Canadian passport number. Highlight the changes and show it to the CO during your interview.
By amend you mean I should update the current DS-260(which I submitted earlier) and highlight the amended part, print it and bring it with me. Correct?