C# : Start a process in Linux - Issues

I am trying to start a process in Linux using below c# code in mono developer

Process.start(filepath);


Results as checked in task manager of linux<br>
1. Process starts but ends in 3 secs with Memory shown as 'N/A' in task manager during the 3 secs and status as 'Zombie'

Note : The process works file when executed from terminal or when double clicked