Hi Vikram,
You need to understand how you can connect to HANA Database.
Just like the other databases, HANA allows you to connect via ODBC, ODBO or JDBC.
If you have any programing language or any environment in mind you can use it as far as it can connect to HANA via ODBC, JDBC etc.
The other possibility is to use XS.
From SP05, you can connect to HANA system directly via HTTP(S).
And you can use Odata REST Service, Sever side javascript etc. for the connectivity.
Please go through the standard HANA Development document first.
http://help.sap.com/hana/hana_dev_en.pdf
Best rgards,
Makoto