The government had earlier said the coal imports in the April-October period dropped by 4.56 per cent over the same period in 2014.
"Coal India (CIL) has not got very encouraging response from the power producers as a result, so far in the current fiscal, the PSU has just imported 5 lakh tonnes of coal," an official said.
The coal PSU received import orders from only two to three producers, including Andhra Pradesh Power Generation Corp Limited (APGENCO), the official said.
In the last fiscal, CIL had imported 0.48 million tonnes of coal for power plants.
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"In order to make necessary arrangements for supply of imported coal, interested and eligible power utilities are requested to approach the supplying coal companies immediately with whom they have signed for further course of action," Coal India (CIL) had earlier said in a notice.
The PSU had also said it offers to supply imported coal for the year 2015-16, under the provisions of fuel supply agreement (FSA) entered with the power utilities "in the post 2009 FSA model".
It was decided that such imported coal supply was to be made through a PSU importing agency under a back-to-back supply agreement with power plants opting to take imported supply from CIL.
Coal India accounts for over 80 per cent of domestic coal production.