Deshmukh, P. C.: - P. C. Deshmukh is a Professor in the Department of Physics at the Indian Institute of Technology, Tirupati, India. He has taught courses on classical mechanics, atomic and molecular physics, quantum mechanics, solid state theory, foundations of theoretical physics and theory of atomic collision at undergraduate and graduate levels. He has published more than 100 papers in international journals. His current research includes photoabsoption processes in free/confined atoms, molecules and ions.