This is the financing source for the National Clean Energy Fund.
Since 2010, the Indian Government has doubled the coal tax—now called the GST (Goods and Services Tax) Compensation Cess, three times, reaching 400 rupees per tonne (around USD 3.2 per tonne) of coal produced and imported in the 2016–2017 budget. The GST Compensation Cess is effectively a carbon tax levied at source, with the revenue feeding into the National Clean Environment Fund that provides finance for renewable energy projects. The GST compensation cess generated revenues of USD 12 billion between 2010 -2018