Hi Tejas,
Thanks for the inputs. I was told to develop using SAP fiori Tool-tip under Eclipse Juno.
I am extending the My Leave apps standard. (HCM_IRQ_CRE). After extending it i am doing the modification on the extended apps. (creating a Extension project)
My requirement is like:
we are getting the data from the back end HR system. (PA30).
It should display in the front end.
so do i need to modify anything from the ABAP side ? or How can bring the ECC to the UI5 screen?
Also, I need to check the Start date, End Date Comparison. How to proceed.
If any code snippets available let me know, so that i can use it directly.
Experts.. Looking for your reply. 
VeeraP,