Hi Shwetha houde,
The "Assigned" status means that the job has been assigned to a process server, however, has not yet been picked up by the process server.
So, my questions:
1. Has the job already run successfully with the parameter combination you use ?
2. Has the process server already successfully ran SAP PI jobs ?
3. Can you check if the SAPPI service is running on the process server ?
Regards,
HP