The black sofa could be considered a neutral, and therefore will go with just about anything. Do you like the white and gray, or are you looking for color? Bright colors? Subtle colors? Also with a baby I would surely want an area rug for her little knees. In this first picture you can see pops of red were added for color: [houzz=https://www.houzz.com/photos/2007-aso-decorators-showhouse-and-gardens-contemporary-living-room-atlanta-phvw-vp~26704] In the second picture, a monocrhomatic color scheme with a soft area rug: [houzz=] And in the third picture, yellow was added for interest: [houzz=]

Colour...objects of interest...lighting...all add "energy' or we refer to as "movement" in a space. Interesting pieces of furniture with different textures and different "eye-levels". For instance, you can purchase 3 or 4 different forms of seating options...you are in India so you should be able to find FABULOUS furnishings for great prices. You could purchase a low-slung sofa, an extra large "floor pillow" (it would act as a chair or foot stool), a leather-covered round ottoman and an interesting crate/box with a slab of glass or intricate wood over top...this is your seating arrangement for the living room and will work as a great "hang-out" space that you can enjoy by yourself or with a tonne of people hanging around! With all that visual "movement" from one object to another to another, you will create interest! And "interest" is energy! But your best bet for energy...people!

Do you mean you would like to put a dining table where the rug is?

Is the indent in the wall where you have the TV now, supposed to be for a TV or is it to be a closed up closet?? You could switch the room with living area where you walk in but then you cannot wall mount the TV due to windows. Plus you might like eating near windows for more lighting drama. Also , now seeing your hall , I think turning the dining table 90 degrees from how I placed it, would fit better in your space. You could consider an area rug under the table as well , which would help to define the space when you enter. Also keeping a runner and a vase with either fresh ( or nice fake) flowers on the table, will make it flow better with the living room area furniture.