Vikas, you need to stop typing, and pay attention to our advice! You need an architect. If it is a Western architect you're looking for, then search Houzz "Find Local Pros". Perhaps you could contact a Houzzer named Dytecture - here's his Houzz page: http://www.houzz.com/user/dytecture That is really all we can do to help you.

Hi Nikita, First and farmost, you have very beautifull coushion on sofa, from where you buy it? You can check the videos of Small budget Big makover first session series in youtube. In One such house in Gujarat, Muninder and Bishakha coloured the old sofa set with whtie (The sofa is like yours) and changed the centre table. Interestingly, the family also had your kind of sofa set and they also want some modern style. The architect duo did not changed the sofa, just changed the colour. Yes I found it in youtube. it is the house of Setu Upadhyay. the link is https://www.youtube.com/watch?v=85GNhyLeVnM Another suggestion is that you have many tables on the room. You can drop few chairs and opt for a single centre table

Since the height under the stair is low you will need to lower the floor area if it is already not built by 30 cm and you could use it as a study area , a computer table or an ironing space . The first flight can be covered and used for storage. If the stair is a metal stair you can design an internal courtyard there.

Referring to the sketch above as option 1 you can have two option, option 1, as obvious cutout at the middle of the u shape staircase, in addition to this you can also have a double height entrance foyer with a chandelier in between hanging from the top. on first floor you can shift the balcony door side ways as mentioned with a circle. referring to the image above option 2 option 2 would be a complete change of staircase orientation , bringing the staircase in front foyer, extending the upper cutout as marked in dotted line, the new found area can help you extend your both bathrooms areas or can help you put some ground floor furniture or a informal study area.(see if your FSI permits to all these changes). and on the top your new area can accommodate your big gym equipment's like treadmill , and some additional gym storage. here you can also get to know from top who has arrived to your front door peeking downwards. further the walls of this area can be decorated while doing interiors and make the foyer look grand & luxurious. option three, If you are thinking of giving a cutout in center of the hall, please avoid, your areas above wont be usable in an appropriate way. cheers