Hi Vivek,

To place a Menu under Other Module menus you need to include the Parent module in your __openerp__.py file and give the parent menu id in your menu item. Let me explain you with an Example. Consider a model called Test. To make that Module visible under Human Resources module do the following steps:

Step-1: in __openerp__.py add the following line "depends" : ["hr"],

Step-2: then in your view xml file add the following lines...

<menuitem id="menu_test" parent="hr.menu_hr_root" name="Test Module Parent"/>  

<menuitem id="menu_test_child" parent="menu_test" name="My Menu" action="action_test"/>

 Here **parent="hr.menu_hr_root"** denotes the parent id under which you are going to place your menu. i.e., hr.menu_hr_root is the id of the Human Resource menu. 
And **name="Test Module Parent"** denotes your Test menu's parent name and it can be anything.

The Line-2 denotes your clickable menu. Here the **action="action_test"** denotes the action to be carried out when you click on My Menu.