The coal ministry on Wednesday said it has completed the annual exercise of sampling and grading of coal at 427 mines and the new fuel grade will be applicable from April 1 this year. Of the total 427 mines, 331 are central public sector units, 69 under state governments and 27 private sector mines, the coal ministry said in a statement.
“To ensure the correctness of the grade, the samples drawn were analyzed in two different labs,” it added.
