Forests and the plantations have a high potential to mitigate the changes in the environment, preserve the inherent soul of any ecosystem and biodiversity. The introduction of the exotic tree species can take intensive pressure as well as provide for the increasing demand of timber and other forest products, which can reduce the burden on natural forest. Besides Agroforestry, the exotic tree species can also be used in energy plantation, avenue plantation, industrial plantation and wasteland plantation. These tree species are also useful for afforestation of opencast, coal mines and also used for reclamation of saline and alkaline soil. As the exotic species have faster rate of growth as compared to indigenous species so the production and yield is much more in exotic species as compared to the later, but ignorance is one of the reasons for the lesser spread of exotic species. People need to understand about exotic species, their impact, and management. Introducing a non-native species into any region is also ensures focus on ecosystem. The ecosystem and the environment is very much adaptive to the indigenous species. Introduction of a new species may become invasive to that region which can cause an imbalance of the ecosystem. There should be the right amount of species introduction, required for the mitigation of climate change and control on climate variability. This paper focuses on the brighter side of exotic tree species introduction, the problems encountered and steps to mitigate this issues.