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Hello Mayuri, To have better suggestion, you have to post the room pics of all the rooms.

Hi Katheeja,My suggestion is to check the Latest Type of Curtains Use Thick + Sheer Stitched with Three Pleat or Two Pleat with M Track Channel Hardware, by the way I am from Hyderabad working as sales person of Wallpapers and Curtain's Blinds Roman Blind Etc.

I was going to suggest the same thing as InspiredHome. Fix the false ceiling no more than 6 inches from the true ceiling. However you would have to drop the height of your wardrobe loft shutters, otherwise you will not be able to open them once the ceiling in place.. You can leave the carcass as it is, but replace the the shutters with a fixed panel from ceiling to about 8 inches below, and smaller shutters in the remaining space. The false ceiling can stop at the fixed panel above. That way you will not lose loft space