The divers from the Indian Navy and the NDRF on Wednesday could not go down the 370 foot-deep mine, in which 15 miners are trapped for nearly three weeks, even as draining out of a nearby abandoned mine they believe may be connected to it continued, officials said.
A high-powered submersible pump from Coal India Ltd will be put into operation Thursday in the abandoned mine, while more pumps from Odissa Fire and Disaster service are to be pressed into services in more abandoned mines, they said.
The divers from the Indian navy and the NDRF did not go down the main shaft to rescue the trapped miners because 'de-watering' was going on in the nearby mines and there was no significant decrease in water level there, operation spokesperson R Susngi told PTI, giving details of the operation on the 21st day of the disaster.
At about 5.30 pm, the water level at the nearby abandoned mine went down by 16 inches, he said. On Tuesday, water level in this mine had lowered down by six inches.
The spokesperson said the services of the Navy and NDRF divers will be used once the water level at the main shaft decreases to about 100 feet from its current level of over 160 feet.
A high powered submersible pump from Coal India Ltd, which arrived here Tuesday night, is expected to be fully operational and begin pumping Thursday, Susngi said.
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As on Wednesday, one of the 10 pumps brought by a team from Odisha was in use in a nearby abandoned mine and on Thursday the pump from Coal India Ltd will replace it.
Susngi also said the Odisha team is expected to operate more pumps on Thursday in the nearby abandoned mine shafts in East Jaintia Hills district.
District Authorities said there are at least 90 such abandoned mine shafts in the area and at present they are all full of water.
The rescue officials believe that the nearby mines may be connected with the main shaft due to which water level is not going down there.
Five more pumps with similar power and functions from Coal India Ltd are on the way by road from their various centres across the country.
With search and the rescue operation not making much headway, no contact has been established with the trapped miners even after 21 days of the disaster. It is still not clear whether they have access to food or water.
Fifteen miners are trapped inside a 370-foot-deep illegal coal mine in East Jaintia Hills district since December 13 after water from a nearby river gushed in, puncturing the mine wall.