As pollution level rises in the capital, Delhi Chief Minister Arvind Kejriwal and Environment Minister Gopal Rai on Tuesday kick-started the sprinkling of the bio-decomposer solution. Prepared by Pusa Research Institute the solution brings some relief to city dwellers threatened by the toxic air polluted largely by crop burning during this time if the year. The process aims to convert stubble into compost and help in doing away with the practice of burning it. For the past two days, Delhi's pollution level has reached 'very poor' category amid stubble burning in neighbouring states. While talking to the media, Kejriwal said that the government has made all arrangements and farmers will not have to spend any money. Sprinkling will be done, stubble will get converted into compost and the land will be ready for crops in 20-25 days," Kejriwal said.