Thank you for your quick response . I think this will give a better picture ,I modified the layout a little bit for a more clarity.As you can see the kitchen is right at the entrance and the only light it gets is from the living room due to which we cant close it off.It will be really helpful if you could share pictures of the ideas .

Sangita, There is another option, which involves some additional costs.It's called a transom window. It will make the door appear bigger and also offer ventilation . Usually, it is made in the same frame but it can also be added later on. Check with your designer if it she can add it now. Some images are attached for your reference.You can also add moldings to the final frame to increase the height visually. We wouldn't recommend you bringing the ceiling down using a false ceiling. You can use it to cut say 6-7 inches but not more than that. Thanks, Nitin Cornerstone Designs, Bangalore.

Madam Your options are ok.... From dimensions point, few things to take care: Your Existing platform depth, you need minimum 21 inches depth for Modular one... New Hood/hob will need 60*60 cm space.... From there you can finalize your sink position/size.... Sink size usually are from 380mm to 600mm, check your window size first!! Since you are removing the old door, plan wall shelves parellel to base cabinets (below existing countertop) Wire basket's are usually from 300 mm to 600 mm size, , based on your lengths it can be further discussed... On the other side there is an RCC shelves which you may have to remove for proper look......

Hello Sam Sam, You must send the drawing with door and ventilation layout with dimensions.