You might consider a sliding partition using barn door hardware. This solution wouldn't take much space away from the corridor, and you can utilize any type of wooden door to match your style.

I like the wardrobe/divan idea.Put it flat on its back with open shelves facing up .And put wooden covers with handles,so that it becomes a makeshift bed/divan with storage.It could be a cupboard with long divisions.You could put shelves there.Flat on its back(divan), standing the way it is(dresser) or standing up on its height by width side(wardrobe),any which way it is eminently usable.I do not go by the name"interior designer/architect"

How to Remove Cement Stains From Tiles Pour a generous amount of vinegar into a bowl. Place a clean rag in the bowl to soak up the vinegar. ... Keep the rag over the stain for 2 hours to allow the vinegar to soak into the cement. ... Remove the rag from the stain, and scrub the stain with a scouring pad. ... Dampen a sponge in water, and rinse the area with the sponge. I took these suggestions off the net by the way. I've never tried it myself! All the best. Acid is corrosive so unless you have an expert who can determine how much to dilute the solution, it can be a bit tricky

Hi Rahul, Sorry for our delayed response. Considering the layout and measurements of the room, a poster board is not a practical choice anymore, unless you can place the bed on the wall with the balcony. Even then, we'd only recommend a small-sized bed that's more suited for kids rather than adults. Otherwise, you'd have room that looks cramped and has very little space to properly use the wardrobe.