Something like this might be a good solution for you http://inhabitat.com/kichlers-new-led-tape-light-fits-just-about-everywhere/

Rajesh--I would consult with a designer/architect in your part of the world to correct the reiling deficiency. I cannot speak to building codes in what I am guessing is the far east, but your local architect can. Attachment of the railing, to the floor and to the stairs, in terms of rigidity and support are important, as the rail will slope by the steps, and need to transition to a straight rail at the landing, and terminate into the white wall at the landing. Also, the architect can verify that the steps meet codes in terms of rise and run and the gaps btw. the steps, which would not pass code here in the U.S. I cannot see the while inside wall as you ascend the stair, so all I can suggest is installing a nice piece of art, possibly a triptych, of something culturally fitting for your part of the world. I wish you well in your design pursuits.

Thanks for your valuable suggestion.. I have already bought 46 inch led tv and don't want to wall mount since it restrict access to USB drive.. I want to place it on table moreover the place under stair is very deep i.e 4 feet.. Any better idea or suggestion to get maximum viewing distance .. My living room is only 12 feet long..

Ok thanks. After SE extention 1. NE was cut 2. SW was cut 3. water tank above toilet in center of east. 1. NE cut - Just make a shed/pargola of same height as bathroom... put 4 poles beside staircase and put up a tin shed. 2. SW cut... build a store room with 4 poles, tin shed, wall of plywood or/else any material you can afford. Door from east work area. Or door preferably from inside the bedroom. This is the bedroom in SW corner which head of the family or bread earner should occupy. 3. Water tank and toilet is not causing much problem due to height. However; I am not sure if thats exact center of your whole plot. Doesnt seem so. If anyone living there facing litigations, financial troubles or unnecessary authority problems... Just pay 500rs to a known good vastu consultant and amend accordingly. Its not practical to advise seeing pictures only, there are many things to consider. Thanks