Dear Karthik,
If you would like to do the development in the ABAP layer and want to make use of the HANA features directly you may want to consider AMDP(ABAP Managed Database Procedures) available since release AS ABAP 7.4 SP5 onwards(only for HANA DB).
The basic idea of AMDPs is to make use of ABAPclasses as the containers for HANA stored procedures. You can find a nice intoruction to AMDP here in this document.
Best regards
Sundar