Hello Pooja,
you can check the following tutorial: Tutorial: Consume an OData Service with the CREATE Option - SAP HANA Developer Guide for SAP HANA Studio - SAP Library
There is a method "callUserService" described which shows you, how you can create a new entry by method "create" of the ODataModel.
So you do not have to create any further procedure. An OData service on HANA >= SPS06 is write enabled for tables by default if not avoided by a "forbidden" statement.
Best Regards,
Florian