[3] He is on the editorial board of International Geology Review,[4] and has served as an executive committee member of the Volcanology, Geochemistry and Petrology section of American Geophysical Union for six years.

He was an advisor and consultant of the International Atomic Energy Agency in its Isotope hydrology Division in studies of Groundwater Arsenic contamination in Bangladesh and India (West Bengal) and for ground water exploration in Jordan.

[8] Basu has focused his research on mineralogy-petrology, volcanology, mantle petrology and isotope geochemistry,[9] and flood basalt volcanism, mass extinction, as well as meteorite impacts.

Also, by using Neodymium isotopes he showed a meteorite impact melted crustal rocks to form one of the largest Nickel deposits in Sudbury, Canada.

[14] The second largest mass extinction in Earth history at the Cretaceous -Paleogene boundary (KPg), nearly 66 million years ago, is another of his major research activities on plume volcanism.

[21] He and co-workers found meteorite fragments[22] at the Permian-Triassic boundary in Antarctica, a finding that was challenged by several scientists who opined the Siberian Flood Basalts as the sole cause of this P-T extinction, although small impact crater in South America of P-T age is acknowledged,[23] and an end-Permian impact crater offshore of north western Australia has also been proposed.