Nikhil Banerjee Workshop 

This is a workshop given in the United States by Pandit Nikhil Banerjee, along with Pandit Anindo Chatterjee. Location and date unknown. Perhaps Pandit Anindo Chatterjee remembers? Also, I don't know who is the woman on tamboura.
Note on the video: The source tape was in very poor condition, shot on fairly primitive equipment. The beginning of the workshop is missing. There were many video glitches and dropouts, so other (small) parts are missing. There is annoying audio leakage from an unknown source that penetrates into this recording.