I'd open it above like a 'pass-through' and bring the table out in front of it with a bench under the opening.

What kind of a look are you looking at for your house. A minimalist modern look or a contemporary ethnic look. First and foremost you need to do away with the current drapes and replace them with fabric blinds or light curtains so that there is some natural sunlight in the room. Paint the entire room white so that instantly brightens up the room. The long 27ft wall can be wall papered with a bricked look 3D wall paper on light grey or beige or just a textured wall in beige or grey. Also removing your sofa from there will open up the space. The current drawing area can be used as a foyer/entryway with just a bench and a shoe rack. Rest of the details I will share after making a rough plan with all furniture placement. Also what is your budget for renovation.

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

Greetings From Dream Design, As per your Inputs we are suggestion you some ideas -you can go these type of partitions see the reference image Wooden Glass But if possible can you share the photos on our WhatsApp no then it will be more clear that how much partition you need and what kind of like wooden or glass