India's transport system is one of the largest, handling, on an average, 800 billion tonne-km of freight and 2300 billion passenger-km. It consumes more than 50% of the total liquid fuel consumed in the country (Planning Commission, 2002). The total GHG emission from the transport sector in 2000 was 98,104.12 Gg CO eq. This is 9.6% of the total CO, eq. emissions from the energy sector and is 6.3% of the total GHG emission from the country, in 2000. Of the total CO, eq. emissions from the