Hello Dharmesh,
Please see the blog FAQ: What is the best SAP module for me? for information regarding your question. In general, you are on the right path. Use the experience and certification to leverage your way into an entry level SAP Support job. Since you already work for a company that runs SAP, you're already ahead of the game. Hopefully you can make your interest known and get transferred into SAP support.
Best regards,
--Tom