I am trying a GLSL sample

I have used all the shaders as it is.
And I have mode sure there are no shader compiling issues.
And also there is no glGetError issues.

And I have a loaded a completely different model(a car model of triangles only) using glDrawElements.

It is not working.

I have started learning the shaders now only.
Can some one help me on this why my code will not work.

I can provide any data or even my code also if you have any doubts or if you want any info.