added config.xml code
<?xml version="1.0"?>
<config>
<modules>
<Npm_Foundation>
<version>0.1.0</version>
</Npm_Foundation>
</modules>
<admin>
<routers>
<foundation>
<use>admin</use>
<args>
<module>Npm_Foundation</module>
<frontName>foundation</frontName>
</args>
</foundation>
</routers>
</admin>
<adminhtml>
<layout>
<updates>
<foundation>
<file>foundation.xml</file>
</foundation>
</updates>
</layout>
</adminhtml>
<global>
<fieldsets>
<checkout_onepage_quote>
<customer_foundation>
<to_customer>foundation</to_customer>
</customer_school>
</checkout_onepage_quote>
<customer_account>
<foundation>
<to_quote>customer_foundation</to_quote>
</foundation>
</customer_account>
</fieldsets>
<foundation_setup>
<setup>
<module>Npm_Foundation_Model_Entity_Setup</module>
<class>Mage_Customer_Model_Entity_Setup</class>
</setup>
</foundation_setup>
<models>
<foundation>
<class>Npm_Foundation_Model</class>
<resourceModel>foundation_mysql4</resourceModel>
</foundation>
<foundation_mysql4>
<class>Npm_Foundation_Model_Mysql4</class>
<entities>
<foundation>
<table>foundation</table>
</foundation>
</entities>
</foundation_mysql4>
</models>
<resources>
<foundation_setup>
<setup>
<module>Npm_Foundation</module>
</setup>
<connection>
<use>core_setup</use>
</connection>
</foundation_setup>
<foundation_write>
<connection>
<use>core_write</use>
</connection>
</foundation_write>
<foundation_read>
<connection>
<use>core_read</use>
</connection>
</foundation_read>
</resources>
<blocks>
<foundation>
<class>Npm_Foundation_Block</class>
</foundation>
</blocks>
<helpers>
<foundation>
<class>Npm_Foundation_Helper</class>
</foundation>
</helpers>
</global>
</config>
But I am not getting the attribute in collection.