This document provides an overview of biogas including different feedstocks, potential, socio-economic benefits, and upgradation methods. It notes that biogas can be generated from various agricultural and food waste sources. The annual potential for biogas generation in India is estimated to be over 20 billion cubic meters, which could produce over 8 million tons of bio-CNG or over 5,000 MW of power. Developing biogas would provide socio-economic benefits like reducing women's workload and generating organic fertilizer. The document also outlines various government programs and subsidies to support biogas development in India.