I think you should stay with a simple pattern for draperies. Possibly a pattern incorporating the white trim and warm yellow walls. This would be soft and understated and something that you wouldn't get tired of easily. Other colors could be introduced with accessories.

Installing curtain rods at the ceiling is a great way to add height to a space, but the drapes will cost a bit more because they will have to be longer. You might get a better picture quality if you installed a projection screen over one of the windows which could be raised out of the way when not in use.

Hello Gargi, It is difficult to get the exact hardware in India you unless you want to import it . Alternatively, a similar one can be made with slight changes in the fittings. It may also require the book-shelf to be made accordingly. You would need skilled craftsmen to get it done. Costing depends on the base material and sliding mechanisms used. You may need to conclude that with your designer. Thanks Nitin Cornerstone Designs, Bangalore.

Hi Aditi, As Gauri mentioned below, you can play with the space and be creative here. As trusted interior designers in Chennai, we suggest considering plant vines or a few strands of curtain creepers to bring a touch of greenery and life. Even if your lifestyle doesn't allow room for real ones, in this day, you can also incorporate artificial plants in the design as long as they have a very life-like look.