Three coal miners including the owner of the mine died in remote Siju area of South Garo Hills after inhaling toxic fumes while attempting to extract the mineral, a delayed report said.
There is virtually no communication link in the remote jungle area which is on the periphery of the Balpakram National Park.
The tragedy occurred on August 24, at a place called Garogittim, 4 kms from Siju market, but the news began to trickle in only on Monday after two of the miners managed to come out alive and informed the villagers about the mishap.