First, I would ask the builder to give you the dimensions of the furniture used in the plan. Since they've already done the legwork-you will know which pieces will fit. Many times folks go the the furniture store and end up with a huge sectional and it over powers the room. Second, just get what you love! You have to live there. Start to create an idea book in Houzz. You'll start to see a pattern. Then just find a sofa like the one in your pic that is in your price range. Just keep repeating until you have all your pieces. Same thing with wall decor (which I would do last). Have fun!

i Walls are painted off white which I would love to retain which makes the room very bright. Dinning table set have been bought in mahogany finish with orange Upholstery for chair. Remaining furniture’s are yet to be bought. I have a show Pieces both modern old with a good collection of books. i Need your guidance sir.

@Cornerstone design studio: Apologies for making big post; thought that more info will help. @Rupal ji, If it sounds like I dont need any changes; my apologies for that. Let me put it in short,"I am looking for options that give modern facilities without leaving good things from old charm/ comforts. " Thanks for the straight forward comments. I shall try to edit my original post to make it simpler and that looks open to new ideas.

Apologies Pro, for speaking on her behalf but I guess she is referring to the alignment of the sofa and TV unit and the viewing angle. If the sofa is placed on the orange wall it has to be done after leaving the door space where as TV is place very near to the wall. Secondly, it will be too much of a viewing distance. Veena, if this is what you meant by 'haywire; it will be better if you share the floor plan with rough dimensions of the sofa and TV unit. Thanks, Nitin Cornerstone Designs, Bangalore.