The company's target for the month of July was 40.29 million tonnes (MT) of fossil fuel, Coal India (CIL) said in a BSE filing.
The company produced 162.38 MT of coal in the first four months on the ongoing fiscal.
However, the target in April-July period of FY17 was 172.72 million tonnes of coal.
The government has set a production target of 598 million tonnes for CIL for the ongoing fiscal.
The company is eyeing to double its production to one billion tonnes by 2020.