how to build this type of wardrobe.....how will the shutters be executed?

Leave the vanity in the ,space needed in a walkin is personal but in a 8 x 8 if you put storage on 3 sides you will have quite a lot of space, figure out what you have now and see if it will all fit or will you need dressers in the MBR

I want to put mirror on my wardrobe. can it be put directly without giving studs . I also need a lock on it .is it possible without giving a frame for the mirror. and what is the best way to put mirror on a wardrobe if I don't want to get the frame polished.can laminate be used in that case

Dear Vinod, That's what happens when you give a project to a carpenter cause they view it as the single element and can't imagine where and how it is going on with the space around. "They literally don't care" except the money they save in that project. As the wardrobe is glossy and dark gray you have to make-over everything in that room to makle it look better. So better go for removing it which is more economical, and if your wardrobe is done with solid wood or timber just go for wood finish paints (veener/varnish/some other) or else go for duco paint or any other that can be applied on it. But BETTER consult a Designer or an Architect to those kind of works not carpenter or some vender. And lastly remove that funky looking overhead outcrop. Have a nice day