Hi,
When i used below command, i am able to send mail
mailx -s "Testing mail working or not " babu.sudhakar@ymail.com"
but if i want send attachment with mail,which syntax i need to follow to send a file as attachment.
try
uuencode "attachment file name"|mailx -s "Test mail" xyz@mail.com
It works for .csv files for me..Try and let me know as well 
This comes up all the time. Searching the site finds all kinds of examples.
Google Search Results for mailx attachment | The UNIX and Linux Forums
I had the same need time ago. I tried with mailx but it didn't work with a lot of files I wanted to send in an automated way. I finally installed mutt:
Look for in in sunfreeware
Si very very powerful