Baidurya Rahasya (Mystery of the Electric Gem) is a Bengali thriller movie directed by Tapan Sinha.
[3][4] An invaluable emerald was stolen from a Lord Krishna's temple in an island, that was insured for Rs.
There are some mysterious people like young researcher, priest Nityananda, and Singh ji, trustee of the temple.
When old garden keeper Charandas was brutally killed by a masked man in the night, the police started a parallel investigation.
Finally it was revealed that not only theft but another murder was committed in the temple few days ago.