Thanks
Santhosh

I think he means to include the description of items inside the report.

May be you are right.  but from his question, he shows the button display text and asked to modify.

Dear AP Muthu sir ,

Where I can modify the "Display : print sales quotation page" with description of items attached. ??

_akshaya

If you are looking to change the button name Display : Print Sales Quotation. 
The  Display is programmed to create automatically here. And the Print Sales Quotation Comes from the reporting/reports_main.php  i am not sure about line number .138 . Anyhow the code will be like this.

$reports->addReport(RC_CUSTOMER, 111, _('&Print Sales Quotations'),
    array(    _('From') => 'QUOTATIONS',
            _('To') => 'QUOTATIONS',
            _('Currency Filter') => 'CURRENCY',
            _('Email Customers') => 'YES_NO',
            _('Comments') => 'TEXTBOX',
            _('Orientation') => 'ORIENTATION'));

And here  you can see the text there.  Just change this text to something else.

$reports->addReport(RC_CUSTOMER, 111, _('&Print  Quotations'),  //Edited by Varadha for your understanding
    array(    _('From') => 'QUOTATIONS',
            _('To') => 'QUOTATIONS',
            _('Currency Filter') => 'CURRENCY',
            _('Email Customers') => 'YES_NO',
            _('Comments') => 'TEXTBOX',
            _('Orientation') => 'ORIENTATION'));

Where I can modify the "Display : print sales quotation page" with description of items attached. ??

_akshaya