Hello Saurabh,
The following SAP Note contains links to exhaustive documentation explaining how to configure, customize and personalize FPM-based WebDynpro applications:
1619534 - How to Create, Enhance and Adapt FPM Applications
e.g. the link for SAP Netweaver 740 is:
How to Create, Enhance, and Adapt Floorplan Manager Applications on SAP NetWeaver 7.40 - Part 1
Best regards
Francesco