Infrastructure Software

hi all,
i have created shell script like this

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#!/bin/ksh
# set -x
# =================================================#
#
# Program: EXT_REPORT.sh
#
# Purpose: Installs report objects into an instance
#
# Parameters:
# $1 Apps password
# $2 XX password
#
# History:
#
# Date Version Modified By Comments
# ----------- ------- -------------- --------------
# 25-FEB-2005 1.0 S. Shah Created.
# 24-MAR-2005 1.1 F. Jarin Updated for Reports
# ==================================================#

#
# Accept APPS and XX database passwords
#
apps_pwd="$1"
xx_pwd="$2"
date_stamp=`date +%y%m%d.%H%M%S`

## ##################################
## # Update name of seed data files:
## ##################################
echo "Step: Loading Concurrent Program(s): "

## ##################################
## # Update names of .ldt files:
## ##################################
cp $XX_TOP/11.5.0/install/ext_expense_report/rpt/TT_EXPENSE_REPORT.rdf $XX_TOP/11.5.0/reports/US/TT_EXPENSE_REPORT.rdf
echo "copied report file"

FNDLOAD apps/$apps_pwd 0 Y UPLOAD $FND_TOP/patch/115/import/afcpprog.lct

$XX_TOP/11.5.0/install/ext_expense_report/aol/TT_EXPENSE_REPORT.ldt -


echo " Done."
echo " "

echo "Install complete."
----------------------------------------------------------------------------------------------------------------------

when i excecute this from putty getting following error like

ksh: ext_report.sh: 0403-006 Execute permission denied.

why it so?

anyone help

regards
Rajesh