Cannot add Android Platform in Phonegap

I want to create Android apps using Phonegap. I have installed nodejs, phonegap, cordova, eclipse and everything. But while trying to add android platform i am getting this error. After a lot of searching some says add 'ant' path to system variables. I have done that. But may be i did wrong. Tried a lot of times. Not working. Here the error i am getting while trying to add android platform

C:\hello>cordova platform add android
Creating android project...

C:\Users\gijo\.cordova\lib\android\cordova\3.5.1\bin\node_modules\q\q.js:126
                    throw e;
                          ^
Error: ERROR : executing command 'ant', make sure you have ant installed and add
ed to your path.
    at C:\Users\gijo\.cordova\lib\android\cordova\3.5.1\bin\lib\check_reqs.js:47
:27
    at exithandler (child_process.js:644:7)
    at ChildProcess.errorhandler (child_process.js:660:5)
    at ChildProcess.emit (events.js:95:17)
    at Process.ChildProcess._handle.onexit (child_process.js:808:12)
Error: C:\Users\gijo\.cordova\lib\android\cordova\3.5.1\bin\create.bat: Command
failed with exit code 8
    at ChildProcess.whenDone (C:\Users\gijo\AppData\Roaming\npm\node_modules\cor
dova\node_modules\cordova-lib\src\cordova\superspawn.js:135:23)
    at ChildProcess.emit (events.js:98:17)
    at maybeClose (child_process.js:756:16)
    at Process.ChildProcess._handle.onexit (child_process.js:823:5)

C:\hello>