https://www.newindianexpress.com/nation/2019/May/30/substitute-lpg-by-setting-up-biogas-and-bio-methanation-plants-environment-ministry-official-to-ind-1983835.html
Speaking at a conference, additional secretary of the environment ministry, A K Jain said biogas plants and biomethanation plants should be set especially in...
substitutelpgsettingbiogasmethanation