Something like this may work. Note the changed door positions so that anyone in the bedrooms can visit the bathroom without disturbing anyone else in the lounge !

yeah i will change the lamps and the bedding once the curtains r ready....i have a window behind the bed so i will havee to have curtains....becoz i dint find any good navy ones ( i looked in a dozen stores :/ ) so iv thot that ill do some layers in the curtains...may b a plain navy blue ( behind )with the black n white in pic 1 or 3 (infront ) ? lamp shdes navy...n bedding will hav diff colour pillow sets( white blck blue n coral ) ?? will it be too matchy matchy ??

The architects have spoken. I have worked on a couple of building in India somewhat similar and know that this is well liked and fairly common. It does need to simplify but you can do this with color so that the parts introduce themselves not all at once, but with a sense importance relative to the massing. With deft coloring you can give balance and you can make the parts feel like they belong to a whole. There is no need to be simple in the Meisian sense. Lots going on can be quite nice. But with a detailed building as with a person, when you meet them you don't need to know everything about them, see the baby pictures, see the scars from their latest operations. No, you just want the person or building to make a good first impression. Then later as you get to spend some time with them and get to know them you can discover all their intricacies.

You can use natural stone like marble for floor but do not use granite for floor at all as it is very slippery when wet. As for tiles do not go for glazed vitrified tiles for the floor for the same reason. ( floor becomes slippery once wet and may cause mishap) Go for ceramic anti skid tiles that are specially meant for bathroom floor. For wall tiles you can use whatever you like and then decide over the matching anti skid floor tile/ marble. Double charged vitrified tiles are usually used for flooring in rest of the house.