Its first CBG plant was commissioned in Gorakhpur, Uttar Pradesh, with plants now also running in Haridwar and Chennai. Innovation and technologyNexGen's CBG plants use anaerobic digestion -- the same dome-digester architecture already operating across India's commissioned CBG fleet -- to convert agricultural residue, food waste and animal manure into raw biogas. Widening who gets to build India's energy infrastructure is a consistent thread across the company's public communication. 'Honouring Freedom, Inspiring the Future'For NexGen, that theme reads almost literally as energy freedom. Seventy-eight years after independence, NexGen's pitch is that the next chapter of freedom will be measured in energy self-reliance -- and it wants CBG to be part of writing it.