Satyendra Nath Roy was an Indian physicist known for his contributions to the field of quantum mechanics. He was born in 1899 and became a prominent figure in the scientific community during the early 20th century. His research focused on various aspects of theoretical physics, and he played a significant role in advancing the understanding of atomic structure. In addition to his research, Roy was also involved in teaching and mentoring students in physics. He worked at several prestigious institutions, helping to inspire future generations of scientists. His legacy continues to influence the field of physics in India and beyond.