I am a software engineer working in Mumbai, India. I have done my under graduation in computer science in India. With my 1.5 years of IT experience, I have realized that I would like to pursue my graduation and even PHD in physics. I wanted to know about the challenges that I would face in doing so, as for the last 5 years I have been associated with computer engineering and have not been remotely associated with physics. Theory of relativity and quantum mechanics have always excited me, and I would like to pursue a study on the same. Please let me know if its possible for a software professional to get into physics. If yes, then what should be my immediate steps. Should I take GRE or the subject GRE. I just needed some sort of a guidance from you for the next 6 months or which would help me improve myself to the extent that I can work in physics. Keenly awaiting your guidance.