#providing staircase between Kitchen and Drawing room:For providing storage space in kitchen,for bathroom,dining room,pooja room,storage space as well as ventilation. #Proposing extra 8/9' as garden in between two rooms.which may be converted to children room/dinning room/sit-out,by using only part of garden space(without compromising air circulation/sunlight) by using aluminium or other suitable material.Pl. suggest suitable structure/material which can easily provide strong ceiling to be added on 1st floor too. for room to be added in future. #Kitchen- Alley having 2 parallel platforms of 6' length and using remaining 5'+ as dining room

Would need to see a floor plan showing dimensions, window / door openings.

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 .

I agree with divadeva. More lights. If you can add pot lights do it. If they're already there add task lighting and up the wattage on the bulbs on the pot lights (replace with LED and you can make them brighter because the wattage on LED is lower for brighter light). If you have all of that add decorative lighting. If ventilation is an issue find a way to move the air around or add air filtration. Maybe the HVAC is deficient. Maybe you can add a HEPA filter instead of the standard one that comes with the unit. Call an HVAC specialist to see if there is a way to boost air flow in the room.