Hi satyasd,
Considering the queries is related to customized Windows application created by C#.net and Office 2013 database, we have a dedicated support channel. Since our forum focuses on Office 365 online services, to ensure you get the dedicated support, it is recommended to post a new thread on the Microsoft Developer Network forum (MSDN) for further assistance. The engineers there are specialized in handling this kind of queries. Thanks for your understanding.
Best regards,
Mills Fan