Jay,
Thanks for your inputs. Yes, I have increased all time out parameters. This custom GP Tool will do some heavy weight spatial operations at server and returns the success/failed message. As said, input polygon is very complex one having 12 exclusion polygons with 160 vertices. It looks like input geometry is an issue.
When I pass simple geometry tool works fine. Now, my question are..
a) why does the GP tool goes to failed event when input is incorrect/not appropriate
b) Why it showing "The remote server returned an error: NotFound." exception
c) Why there is no proper error message provided by GP tool
d) Do we have any specific events to validate the input Geometry at client side?
e) Note: I am using ESRI SL 2.1. Does latest version of API has new methods on this?. I am yet to check the API library.
Error message displayed really provides no information for me as a developer.
Please help on this. This is bit urgent for me.