One possibility would be to swap the living room and the dining room. Since the current living room is larger than the current dining room you could still keep some comfortable seating (couch and upholstered chairs?) against the front wall for a keeping room/dining concept. Then your new dining areas (kitchen and dining room) and living areas (living and drawing room) would have good flow between them, which would work well both for family and entertaining. You could also add some builtin bookshelves in the drawing room or new living room to create a library area to add another fun element to the living areas. These bookshelves could be against the long walls in the drawing room, around the window with a window seat in the living room (former dining room), or built to create some separation in the open area between the drawing room and living room/stair area. Your plan seems to show some sort of builtin there, but I'm not sure what it is.

If I understand the seasons in India correctly, you have already been through the rainy season. Don't wait until the next rainy season to get the problem with your drainage fixed. Now will probably be the ideal time to get it fixed. Please get someone who will tell you what to do and then have the work done. The paint on that wall in your beautiful home will keep coming off!

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.

A few suggestions based upon your lower photo, the fourth I guess. a. If you had the wall built, ask the guys that built it to perform your wishes. If it came with the house, call the former owner, whose name is on your deed. b. If the former suggestion is a dead end, let's analyze before we plan. You want to have a space for cooking and dining outdoors. This is such a beautiful yard, it does not deserve a portable BBQ unit exposed when not on fire, so put it in the garage as soon as it is cool. If you are going full hog for a builtin BBQ facility, perhaps it can be built against an existing wall, and just the dining area then needs the increased space. A 6' wide round table, requires about 12-14' for itself and the surrounding chairs and service area. Will you be happy with only a 15' or even a 20' section of wall moved? c. Remove the plants from the area that you plan to usurp, and about 5' beyond, and rent a sod cutter to remove all of the lawn from the vehicle entry point to the lower curved wall, by the palm, and stockpile it in shade, if possible. d. Have the contractor saw a vertical cut in the wall at the points of removal. Measure the distance of the plant bed to back wall. Cut the front bed wall that is to be removed with two sections of that overall bed dimention, so they can be placed as end walls for the two sections of bed that are no longer continuous. e. Have the contractor dig up the wall, and cut the two pieces to remain so they are free of the wall to be dumped. He will remove the existing soil from the bed. Modify any irrigation that exists, and then install the two wall slabs to their new duty locations, attach them to the remaining walls, backfill and replant as required.. f. The next step is to cultivate the compaced earth in the lawn area, rake it and resod. If the dining/BBQ areas are to be a dining terrace, you might wait until the sod is reestablished, say another month, before initiating that construction, as you don't want the sod to remain in a pile for long, or you will have to buy new. If it is to be a flagstone terrace, you can have that material delivered and stockpiled where the bed used to be, while the wall crew is just leaving. Will that fill your need. Give this post to the contractor so he can take measurements, and provide you an estimate overnight. Summer cookouts have already begun. Looks like we will miss the 4th of July bash.