The ceiling height is too low to provide false ceiling all over in all the rooms. Go for wall decorative lights and super slim LED lights wherever required.For any further assistance you can ask me.

I have already purchased glossy cherry red floor tile 1000sft. Could anyone suggest wall and ceiling color combination. This is for drawing room Premkumar

Bhaskar, I would give it a pass. :) You have a bath of a size bigger than most of the baths in modern flats. Its approx 30% of your room size. Why do you want to increase it further. Please specify. Options that you may consider - reduce the wardrobe area a bit and compensate the bath. Increase the bath and use the TV or the Sofa wall for additional wardrobes. At one of the clients places we had merged two adjoining baths to make a king size bath. Take your pick. Thanks, Nitin Cornerstone Designs, Bangalore.

the more gap you have the more light will diffuse. the beauty of cove lights comes from that gradient. if you have a small space then that look won't come. additionally, refering to your previous post, it will also be a place for pests. If you want this design, I would suggest you go with an LED and cover the gap with an acrylic cut out. that will give a nice effect. or create two levels, let the flat part stay where it is and make the circular one a recess