HI --- Good bathroom lighting should light the your face when at the mirror --- if it can not be at the sides then down lights over the mirror. Then general lighting for the rest of the space and a water proof light in the shower if needed. A night light under the vanity if the vanity is elevated. And - everything on DIMMERS.

go to a lighting show room, take pictures of the space and any ideas you have. They are best suited to help you. also have a budget. the how to part is nice but most consumers have no idea that the pendants above are probably 300.00 each. Budget for lighting! take advantage of the pro's in the lighting world, its all we do!

If you want to let in more natural light, I suggest either solar shades or sheer shades. Both let in plenty of natural light without sacrificing privacy. Here are examples of both: http://www.blindsgalore.com/solar-screens http://www.blindsgalore.com/sheer-shades

Purvi, false ceiling is not a necessity. The kind of light fixtures depend on the overall theme. If you have sufficient ceiling/wall lights you can use them for lights if extra lights are required then rafters, panelling, conduit wiring are some of the options. Thanks, Nitin Cornerstone Designs, Bangalore.