Hi Ramchandra,
you can find a lot of information on the community page.
The ABAP for SAP HANA reference scenario (ABAP for SAP HANA Reference Scenario ) is a good starting point, or if you prefer Video tutorials, visit Video Tutorials about ABAP for SAP HANA.
If you are more the "learning by doing" fan, you might want to start with an E2E Guide Brand-new ABAP 7.4 for SAP HANA End to End Development Guide with Latest ABAP 7.4 SP5 Features.
If your not too much interested in "ABAP for SAP HANA" but on ABAP development in general, you may visit ABAP Development and maybe reraise your question in the ABAP community again.
Cheers,
Jasmin