Manufacturing of Pellets from Paddy Straw. Pellets made of paddy straw and other farm stubble (also called agricultural residue) were introduced as a way to overcome pollution caused by stubble burning around North India, thereby creating a market for the unused farm stubble. Stubble burning is one of the significant sources of air pollution in North India, especially at the onset of winter. This Pellet making units could help bring down the number of instances of stubble burning and generate additional income for the farmers. In addition, the burning of straw pellets causes zero CO2 emission, and straw pellets are carbon-neutral. Burning the straw pellets to generate energy simply returns the carbon dioxide to the atmosphere, which will then be reused by the next biomass growth.