Black carbon (BC) aerosols, produced from incomplete combustion of fossil fuels and biomass burning, strongly absorb the incoming solar radiation leading to a change in the radiation budget of the earth which eventually result the climate change. The radiative forcing of BC is about 55% of that of carbon dioxide and larger than that of other green house gases. Beside the climate change, it also changes the microphysical properties of clouds and causes human health effects. BC emissions are increasing in Asia due to the rapid commercial and economic developments. To assess the behavior of BC...