These companies expect a two-fold jump in their bus volumes, which is expected to put their market share in the range of 4045% in the next four-five years from 20% now... The total annual bus sales volumes in India are between 70,000 and 76,000 units... Among the various segments in the bus manufacturing industry, OEMs' market share is expected to show exponential growth in the high tonnage bus since the present market share is at 10%. This is likely to boost margins for OEMs once the proportion of fullybuilt buses increases in comparison with the chassis sold to the unorganised private fabricators for bus building..