Hi @Varun1205 and welcome to the forum. Your question is a little vague, probably the reason you have no replies yet. I'd suggest watching some tutorials on youtube, then coming back with a more specific question. It would help to know what sort of detail you're looking for (just the outer shapes vs. inside volumes etc.). You didn't specify which of the types you're trying to re-create.
Looking at your pic, most of the parts are just revolved features. Start drawing and revolving and let us know when you get stuck.