Over the last two decades, Bikramjit led a number of international research programs with universities in USA, UK, EU countries and BRICS nations, as shown in the map below. In this journey, he trained a large number of young researchers from those countries. In addition, he has hosted and collaborated with international colleagues, primarily through funded bilateral collaborative projects. Bikramjit contributed significantly to international academic programs, professional societies/ institutes, and editorial responsibilities in prestigious journals or advising federal funding agencies. He also has taught hundreds of undergraduate and graduate students in India, EU countries, UK and Nepal.