Is it possible to check the list of cron jobs that has assigned to my server using putty or winscp or some other ways to check .Because I could find cron job tab in side my cpanel
You can check for current user
crontab -l
For list of commands available crontab usage
For all user take a look at:
/var/cron/tabs
#OR
/var/spool/cron/crontabs