Aapki Khabar Aapka Fayda: What is crash test and how are cars given safety ratings?

In view of the increasing incidents of road accidents, people have started giving a lot of importance to the safety features of cars for a few years and now car companies also lay great emphasis on showing safety features in advertisements apart from other features. If you look at the National Crime Records Bureau report, more than one lakh people are dying annually in road accidents. Due to these reasons people have become aware about the safety features. So let's understand how the safety of the car is checked and how the safety rating is obtained.