Garden biomass (GB) is generally differentiated from other types of biomass, and it is defined as low density and heterogeneous waste fraction of garden rubbish like grass clippings, pruning, flowers, branches, weeds, roots. Open burning, dumping, and composting are the common place disposal methods adopted in India. These methods are typically associated with Green House Gas (GHG) generation and inefficient energy and resource recovery. The major concern about the management of garden biomass is the lack of authentic scientific information on quantity, composition, and technicalities of various processing options. This paper deals with the evaluation of various treatment options for garden biomass and correlating these options to GHG emissions. Anaerobic Digestion (AD) seems to be the most appropriate process for GB treatment, as it recovers maximum energy and reduces GHG emissions. The reduction in GHG emission is compared with other treatment options.