Can you please elaborate what exactly are you doing?
One application give me the coordinates
Do you know what is the Spatialreference of those coordinates? Can you give me what those coordinates look like?
and I have set the extent view as per those coordinates in ArcGis. Do you have idea?
I think you are asking that you have to set the extents in ArcGIS Desktop? Which product are you working on and what is the programming language/API you are using?