Hi Pardhu
I hope you are keeping well.
In relation to the scenario that you have described. You mentioned that at present your UWL is already configured for the leave request as per the configuration guide outlined below:
If my understanding is correct you want to know the steps for the configuration of the travel component is this correct?
Kindly take a look at the documentation links outlined below:
Setting Up Web Dynpro ABAP-based Forms for UWL
http://help.sap.com/erp2005_ehp_04/helpdata/EN/46/952e3fe391581ce10000000a1553f7/content.htm
With reference to travel management and its configuration kindly view the thread outlined below:
http://scn.sap.com/thread/881515
Kind Regards
Troy Cronin