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.

Have you ever thought about floating shelves? I think pairing a few floating shelves together would look great and would free up space in your living room. I really like the Eugene floating shelf from Bryght and I think it would compliment your existing pieces. http://www.bryght.com/product/160/eugene-cocoa-shelf

I'd have a white entertainment/study unit and a grey/taupe deep buttoned bed back (headboard) I really like the swing sofa! Could you change the chain on the swing chair to silver metal rather than black?I'm not keen on the other chairs though, I'd like to see a taupe/grey deep buttoned ottoman for the end of the bed to match the bed back. White bedding with a taupe/grey satin/silk bedspread across the end, 2 matching taupe cushions & 1 purple cushion with an emblem or monogram. On the swing sofa I'd have 2 more taupe/grey satin cushions. A new glass or silver & glass coffee table would finish it off.

I think all white will be a very nice scheme and the differences in the white will just add subtle difference. In the above pic the walls are more white than the table, but mixing with the light tan colours and greyish tones makes this gradient of whitish tones work well.This room is all white as well with the furniture and walls, but adding the punch of the other colours masks if the whites are slightly different as the bright colours become the focus. The walls in the pic below 'read' a very pale grey so that would be an option, just ensure that it is a whitish-grey and not muddy or warm. I would choose the sofa colour as your main colour and accents to match from there.