How to write complex shader with lightening ?

Hi am not too much experience in writing shader. I have a model and want to create effect like following image. How can i achieve effect like this please give suggestion.

Thanks

 

Fresnel effect, rim light, edge glow.

They're all names used to describe the same thing, a dot product of the view direction and surface normal, with some kind of modifier for the fall off curve usually. The unity surface shader examples page has a rim lighting example.
http://docs.unity3d.com/Manual/SL-SurfaceShaderExamples.html

However since you don't seem to want any lighting apart from the rim light y might just want to search for other unity shader examples.

 

Thanks bgolus,
I have got this effect by Fresnel Effect.