This doesn't amount to murder, but culpable homicide.....
And it may be treated as an accident also, it all depends upon the interpretation of facts and circumstances of the case. The facts being very vague and it just provide a story line of the case but not the material data.
But, pointing your query, whether, it is considered under the limits of railway or not. Yes. though the person is outside the railway station ( after all you can not expect the thief to keep running on railway tracks), the act has taken place within the limits of railway and the person on duty also belong to the railway.
And regarding your, second question whether railway is responsible for any kind of compensation. This can not be answered. It all depends upon how the case takes turns in the courts of law and where it ends as what.
“Yath bhavathi tath nashyathi - whatever is created will be destroyed!! Creation is inevitably followed by destruction"
6th May 2012 From India , Bangalore