SQL loader script - ORACLE environmental variable

I am new in unix..
I am running a sql loader script where I have to specify the data file path but the file name contains spaces in it
so giving error multiple arguments
I have tried it with "" and '' but does n't work the command is :

$ORACLE_HOME/bin/sqlldr userid='iims_user'/'iims_user_ut05'@OBA05D 
control=/data02/NEST_DEPLOY/NEST-UT/BANCS/InstallRoot/bin/unix/ctrl/tmp/bancs_SCM-E-I-EMP-MemEnrolDly_15886_06112012121036.ctl data='/data02/NEST_DEPLOY/NEST-UT/BANCS/DataRoot/inbound/me/inbox2/sumit022 f .csv' 
log=/data02/NEST_DEPLOY/NEST-UT/BANCS/DataRoot/log/ME-log.txt 
bad=/data02/NEST_DEPLOY/NEST-UT/BANCS/DataRoot/log/ME-bad.txt 
discard=/data02/NEST_DEPLOY/NEST-UT/BANCS/DataRoot/log/ME-discard.txt

You can easily see that your use of "'" is inconsistent. Try cleaning up your syntax.