The victims, Vijay Kumar (28) and Dhiraj (20) were on the second floor of the unit when they fell unconscious after inhaling the leaked gas and were shifted to a nearby hospital, they said.
"From there, they were shifted to another hospital and died during the treatment," police said.
Kumar was from Bihar, while Dhiraj hailed from West Bengal.
A case has been booked and further investigation is underway.
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