When I restarted the AGENT all jobs ran fine. So its clear that permission is not the issue.

CMDEXEC step from all the jobs which were executing BAT file run successfully  with duration as 0 and below mentioned message was in the step history

"Executed as user: DOMAIN\SQLService. The step did not generate any output. Process Exit Code 0. The step succeeded."

To run the batch file we use UNC path with  Hidden share i.e.

\\APPServer\cr$\LIVE\7234\serverapps\batch\bin\DoLoad

.bat

Cheers

Deepak