Methane is considered as a potent green house gas causing global warming due to photochemical reaction in the atmosphere. Methane emission from the livestock of Maharashtra has been estimated based on number of animal population reported in the live stock census 2003. As per census record there are 16.7 lakh cattle, 5.74 lakh buffalo, 3.12 lakh sheep and 10.27 lakh of goat constituting the fourth largest animal populated state after the states of Rajasthan, UP and Bihar.