Hi Manohar, welcome to the forum!
It's best to give your topic a title, as the title is usually the link text on various pages. The topic is above the post body when creating a thread.
i'm not really certain what you're asking about. Yes there is an SNMP data source in Mango (you must have the SNMP module installed, which you can get from them modules page or see if it's already installed), and it should be able to request your camera's SNMP endpoints.
Data sources are created on the page linked to in Administration --> Data Sources or at /data_sources.shtm