Please say what Operating System and version you are using. I assume that becuse you are using "mail -s" not "mailx -s" that this is not unix?
You will probably need to convert the attachment from unix to MSDOS format before running the uuencode. Do you have the "ux2dos" or "unix2dos" utility program?
Also, please show where the email body is coming from, and the full path name to the attachment).
The important think in the design of the script is to ensure that all the output ends up on the pipeline where the mail command can read it.
(cat email_body.txt ; ux2dos /userdata/NEV/Scr/ee.txt | uuencode ee_att.txt ) | \
"Email With Body Text and Attachment" "raju111.net@gmail.com"
Also, lose the backticks on the command line. They are not required or desirable.