actually i cant move the dining table close to the kitchen as tahst the main entrance to our house.if i put dining table in that area,the entry would look congested.the rooms adjoining it are gallery which leads to mastre bedroom and another bedroom.

Leather sofas can really dominate the room and can give an overall cold feeling. I would add some earthy elements, like a wood coffee table with glass or metal. Go to Restoration Hardware's website and look at their sofa room scenes. And I'm sorry I think the art is too harsh for the room. That's all your eye goes to in the room. too overpowering. I would look for something softer or maybe a cool mirror and I would add color to the room with pillows and some colorful lamps. I also think woven blinds would look great. They add warmth and give a finished look. The color of your window treatments should contrast your wall color a bit, not match it or else it starts to look generic and blah.. You have warm walls, warm floors and the woven blinds, like Hunter Douglas brand would pull it all together for you.

16' long is a lot of room. Can you post a pic of the rest of the room? Remove every door you can. Every doorway does not need one and doing this one simple thing will remove a ton of bulk and make your space feel more open - no need to remove the hardware if you think you might want the doors back sometime in the future. Are you up for painting the walls and possibly the trim? Is this a sectional? If so, you might have to split it in order to get it to fit. The curtain into the bedroom is a good thing. I have used that idea, I love it, and I am not from India! Change them out for a lighter color and add panels to the ones you have - make them at least 3x fuller than the doorway. Pull them all over to the hinge side of the frame after the door has been removed. Your pictures need to be rehung and you can address that once you have found a furniture arrangement that works.

Pooja's placement is what I was talking about, if you like the NiTi has placed it, shifting the wires is not as expensive an affair as you think it to be. you can pull them from the false ceiling. another thing you can do is use them as two separate pieces. have a C side table that goes under the sectional for a built in side table look for the right piece and use the left as a chaise. You could also shorten it. that will be cheaper but you'll need a skilled craftsman otherwise the structure can be compromised. since you're planning to reupholster, shortening it is also a viable option.