I am little bit confused about normal view and MVC view. What is the difference between both view and why we use blade in framework?
Blade is a templating engine. That means it has some special features that are helpful to you as a developer, such as easily extending other templates or handling php loops in a clean, readable way. You can find an excellent summary of them in the docs: https://laravel.com/docs/5.2/blade
Blade files typically end in .blade.php but there's nothing that says you can't use regular .php files - or another templating engine, if you pull it in through composer. Like most features of Laravel, Blade is entirely optional. But of course: if you don't use Blade, you won't get the features of Blade.
A view in Laravel terms is simply a named template file, Blade or not. You can, for instance, use the view() shortcut function to generate a response to send back to the user, from any template file in your application.