Dr Ray is a graduate from Medical College, Kolkata. Subsequently he trained in Surgery at the Institute of Post Graduate Medical Education & Research (IPGMER) and SSKM Hospital in Kolkata and then joined as Senior Resident at the University College of Medical Sciences (UCMS) in Delhi. In 2005 he underwent training in Upper GI & Laparoscopic Surgery with Mr. Andrew Baker at the Wrexham Maelor Hospital in Wales, UK. He also qualified for the Membership of the Royal College of Surgeons of England (MRCS).