Dependency chain resolution using IoC container

When you have a dependency between two modules, that modules are not well-separated with each other which are not good when design a large application that needs to be modularized and independent. IoC (Inversion of Control or Dependency Injection whatever), as name suggested, comes to rescue us and resolve the problem by injecting an external dependencies to our modules and using the container (that is injected) to decouple the dependencies between modules, so now the dependencies are inverted to our container and that container will control and manage the rest.