More information is needed: How will it be used? What is the view and where? Who will be using it? How many people? Pets? What is your preference of materials? A truly good design address all these issues and more in the programming aspect of the design process. Although hiring a local professional would be great, you can certainly work with a designer via emails, Skype, etc. Good luck.

The sit out is too big and the home theatre will probably be under utilised. you can pinch half the width of the sitout and use it for the g bed wardrobe. Do think about having the dining in place of the home theatre. The garden/court in the present dining appears too small for the house. Think about making the utility bigger and bringing the garden more to the center of the house.

Please mention site location and requirements. If you post your contact information a professional can get in touch with you.

Hello Veena, as reference to your picture, you can go for some light color in the wood work. Because of this color tone in your space, the room looks too filled up when its not. As of the planning of furniture layout , it can only be worked out if you are interested to work out in person. If you are looking for something low key, and is keen on going with same wall color, I would suggest to contrast it with some whites. I have attached a reference picture for better understanding. Hope this helps! :)