Compressed Biogas (CBG) is produced from biomass, agricultural waste, or municipal waste through anaerobic digestion, then purified and compressed for use as a clean fuel. To set up a CBG plant in India, one must obtain a PESO license for storage, compression, and bottling under the Gas Cylinder Rules and SMPV Rules, along with consent to establish and operate from the State Pollution Control Board, approval from the Factory Inspectorate, a fire safety NOC from the Fire Department, and certification from the Weights and Measures Department if it is to be dispensed as automotive fuel. Plants supplying to oil marketing companies under the SATAT scheme also require agreements and compliance testing. The main challenges include coordination with multiple authorities, strict safety requirements for compression and storage, odor and environmental management, land availability, high capital costs for purification and bottling units, and delays due to extensive scrutiny and site inspections.