The Joint Forum of Tea Garden Workers' Union leader Jiaul Alam said the developments rendered an estimated 3,000 workers - both permanent and casual - jobless.
Alam alleged both central and West Bengal government were not serious about the fate of closed tea garden workers.
A district official said efforts were on to end the financial impasse and revive the garden owned by a Kolkata-based group.
Tea garden management sources were not available for comments.