Hi Subodh,
I am not Fred, but I am the developer who maintains this plugin.
>However, we are not able to get where the recordings of BigBlueButton are located.
Do you have your own BigBlueButton server or you are using test-install?
Either case it may take a while for the recording to be processed. They usually don't come up right after the meeting is ended. But in test-install the recordings will be stored only for 14 days.
>It will be extremely helpful, if you can tell us how to access the previous recordings.
What plugin version are you using?, did you install also RecordingsBN?
For BigtBlueButtonBN 1.1.0 you need RecordingsBN 1.1.0, in BigBlueButtonBN 2.0.0 you can have the recordings as part of the intermediate page shown when the activity links is used. If you want to show all the recordings for the course you need RecordingsBN 1.2.0