Dear Shivshanker,
for ABAP for SAP HANA see http://scn.sap.com/docs/DOC-29357.
In addition there are some nice blogs by Thomas Jung. You can use, for example,http://scn.sap.com/community/in-memory-business-data-management/blog/2012/04/11/test as entry.
and also Rapid Deployment of SAP Solutions in open.sap.com
Best of luck...
Regards,
Abbas.