Need a little help regarding wp plugin

So, my client has a demand to build a drop down system as you can see in http://www.batterybhai.com/ where you can select product, manufacturer etc....

My question is to know whether there is a plugin to provide anything related to this...or maybe someone can guide me how to implement it via hardcoding it.

Thanks in advance and sorry for the bad english.

The thing which you are looking for is called "Dependent dropdown" . A quick search on Google will get you so many tutorials ( Sorry I am not allowed to post urls yet )