I think a comfortable distance between the island and the counter is around 42". It seems that you have only 30" between your cook top and the counter. I might be a little too tight. The wall between the entrance and the kitchen could be 4' long instead of 6', you would then be able to move the island a foot which would give you more room between the cook top and the island. Could you switch the location of the toilet and vanity in your dad's bathroom so your enter facing a vanity instead of a toilet which is a lot nicer.

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 wish you all the best for your renovation. One of the most positive thing about the house is space looks convenient. To start of with the designing, 1. first let us start with a creating a focal point, now that the sofa Color is Blue, let us try creating a palette (photo attached) starting with blue, so we can paint white Color on the walls. 2. let us put on two mirrors on both sides of adjacent walls of the curtain which makes it look spacious and reflects light. It gives a cool effect. Even when the curtains are covered. 3. U many use a rug to match the Color of sofa and white walls. Make sure the rug is either beige or a combination of blue, white and grey hues. So that it complements everything well. 4. U may paint the wall behind the TV grey or give it a wooden panelling effect with wallpaper or tiles. That makes a focal point. 5. Increase the height of TV stand with Aluminium or Stainless steel rods, u will find them in the market and paint it white. (Photo attached)

Hello Shivani, For antique look, you can use an indian wooden swing as one seating on one of the sides of the seating, for wall treatment you can also go for pop textures with rust color on the wall. For the sofa go for a light color like beige or creme, with bright color cushions. You can also go for one seating in a contrast or bright color. Attaching reference pictures.