I "Think" I have solved my problem (Still not confident).
But can I upload this somewhere for anyone interested so that they can test and report bugs ? I want the script to be available for general download  . It is extremely crude(as i just modified already existing export .txt  script ) and just "works" (seems to be!) . I need code contributors , bug reporting and suggestions .
What it currently does is it writes a text file which is readable in jbrush-ae library.
What can you do -
1. Edit,place,rotate the mesh in blender .
2. Uses Diffuse color to set additional color.
3. Set transparency level.
4. Set object Texture in from Texture slot.
5. Upload scene in jbrush and edit more (settings like collision ,pointlights) and also serialize models.

blender img-

phone screenshot-

  I am making a blender script which exports a text file which is readable in jbrush ,which I can load in android. But I am bit confused because of wrong positioning of objects in exported scene files.
for example -- I have 2 3d objects in blender and set both of their positions to different co-ords and export them  . But when I load them in jbrush/device , and set both their  translation to (0,0,0), then I want that both objects should coincide . But they are not coinciding  . I want some suggestions to correct my code for positioning  of objects please help! 
 screenshots- 1st is the blender pic
                       2nd is jbrush  pic

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 Hi!
Maybe disabling mipmapping for textures should do the trick.

Sure!

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 YES! It is working!

Thanks!

But I have noticed that disabling filter in emulator does not have any effect . It works on my both hardwares . But would it happen in some other real  devices (Which I won't be able  test)? I mean what factors determine the bilinear filtering such that it may be different  across various hardwares?

    I have a pixelated texture(low res 16X16) applied to a cube . But it does not appear  pixelated  . Is there something I can do ?

   Yeah! It is a must.Try some basic stuff first if you are new to java and eclipse. It won't take much time to get through. And regarding Your project setup ..... you do not need to copy paste helloworld code. Just import it in your workspace. i.e:
files->import->android->existing android project->......browse your location for helloworld sample.....

that should do it!

Edit: note that you can 't use emulator for opengles2 apps. The helloworld sample would work fine on the emulator but the second sample(helloshader)wont work as it uses gles2.You have to run that on actual device !