What if I tear my passport and throw it after landing in Canada as a?
You'll be doing the EXACT OPPOSITE of what you should be doing if you want a Canadian citizenship. Unless you have a way to get a fake Canadian citizenship, you're screwed for good mate. Don't ever tear your passport. If you tear your passport and then think that the authorities in Canada will be like Ah you don't have an Indian passport and you're a tourist, we'll surely get you citizenship to our country so you can use our tax payers money and live your life well. If you do think this then it's better to stay away from going abroad. You'll need your passport or an ID proof to survive in a country. You'll need to get food and shelter for which, you'll need your ID proof somehow. Hell, you need an address proof and an ID proof to get a bank account. Stop thinking about dumb ways to get a citizenship and start thinking on how you can actually get into the country legally and stay there legally. Get your citizenship legally like most of the people do. Hope this helps.