Most people need a visa OR an Electronic Travel Authorization to travel to Canada – not both, and you need to provide fingerprints and photo (biometrics) after you apply.
The quickest way to apply for tourist visa is to apply online. However, you need a scanner or camera to create electronic copies of your documents, and a valid credit or debit card to pay the application fee in Canadian dollars. You must pay the biometrics fee when you submit your application. Otherwise, you may experience delays. On completion of these steps, submit the application, but note that the processing times vary by country. Also, processing time doesn’t include the time you need to give biometrics.