We should reach deep for about feet to extract coal.

Holes are drilled with air compressor to plant the explosive rods.

………….. packets were inserted to keep them in place.

The poal reserves come to an end in the areas of open cast mining in these years. 

SCCL is operating 15 open cast and 35 underground mines in ……………. districts of Telangana.

The one and only gold mine in India

The state which has vast deposits of coal in South India

In some coal mines the coal transported through

Open cast mining means

An example for non-renewable mineral