It sounds like your underlying concern is how to make better use of the living room area. Removing the wall will give you a greater visual impact of the staircase from the living area but does not necessarily make the living space more usable. You might wish to consider how you are using the living space itself, that is, the furniture arrangement. Perhaps, you might want to consider spreading the furniture out by placing the TV on the left side wall, sofa/ couches in the middle of the room facing each other with a coffee table in the middle....i've attached a rough pencil sketch as an idea....hope this helps...

A floor plan would be helpful.

Greetings from dream design, By your images living room is not clearly understood look like 2 living rooms Pls share the all the walls of living room pictures for better understanding -Currently we can advise you to take a light color in room like cream color for walls -Remove the pooja room and make a separate small pooja unit see the reference image -Create a small TV ledge on wall -take one wall with wallpaper so that whole room will be highlighted -Use of artificial pots at the sofa corner See the reference image Pls send us the complete pictures on our no we will help you more or we can share the 3D views also if needed

We can suggest you a very good designs for celling's and living room Pls see the reference .If you need more designs and want a 3d view of your room Then pls contact us 8448402851