The different sizes of room gives you varied availability of choices. The flats are available in three categories. 2/3/4 BHK flats. You can choose a flat of your choice depending on your requirement. As an example if you have a small family you can choose 2 BHK flat but if you have a big family you can choose 4 BHK flats as well.
The flats sizes give you lots of room for living space, furniture , sitting area etc. 2 BHK flats are spread in area of 900 Square feet , 3 BHK flats are spread in area of 1150 square feet and 4 BHK flats are spread in area of 1500 square foot & 2000 square foot