Hi Chiranjeevi,
It is possible to achieve this with standard text determination procedure itself.
Goto transaction VOTXN and in the "Delivery --> Header" create a new access sequence with the Customer Master Text IDs (like the ID which contains the Shipping Point address) from which the text is to be selected. Once done, create or make use of an existing text determination procedure available under Delivery Header and then assign the access sequence to the Delivery Header Text ID into which the Customer Master text is to be copied. Maintain additional settings as necessary. This will ensure that the text from customer master is directly copied over to the delivery header.
There are many documents already available (search in Google) to explain the text determination process if you need help with the same.
Regards,
Som