There are lots of designs available in tiles. Tiles are even available in marble printing. Number of options are available varying in texture, printing, size, price when it comes to tiles. However, when it comes to natural marble, it gets limited. I suggest you to take a look at both tiles and marble. Then depending on your purpose and size of room go ahead. -Thanks, -Lines and Profile

Hi Ankur.. some sets r available in the mkt for diwan... or u can mix and match acc to room's decor..

that is what i have added if you can see the pic above.. want some suggestions on partition that i can use between dining and sitting

I feel partitions are not needed. You already have too much for the space. Adding a partition will shrink the space further. The simplistic solution, you do not wish to discard any furniture would be to paint all the walls in lighter pastles. And use some wall painting frames to highlight certain walls.