No such thing as wallpaper for floors, but there are a few good solutions for water resistant flooring. Pvc, vinyl, linoleum, epoxy or polyurethane paint, for example. I see you live in India, I have no idea what products can be bought there.

As others have said, it depends on the space. As a child I loved velvet flocked because it was so "touchable" LOL! In my extended family we tend to use the velvet flocked in dining rooms, the foil in bathrooms, and a high quality wallpaper in other rooms. The design is totally reliant upon the space it is being used in. In our Victorian farmhouse most of the rooms have the big roses or hydrangeas appropriate to the period. The dining room has a gold foil with red velvet (see below). Photo taken by my cousin.

Cost is a factor also between papering and paint. 20 years ago, I painted and wallpapered everything myself. 10 years ago when I moved and bought a condo, I hired the papering and I did the painting. Last year when I downsized, my handyman and I just did the painting. No paper. I have found that at my age papering is too much for me. When I get down I can't get up and when I am up it feels too good to get down :>)

Hey Vedika, A combination of black and copper/mica wallpaper would love perfect in your room setting. Do go through our wallpaper collection here for more ideas. Best, Team BetterGhar