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).
Dr Ray joined a faculty position in Surgery at Medical College, Kolkata in 2005 and he was Assistant Professor there till 2010. Besides playing an active role in graduate & postgraduate teaching / training, Dr Ray had a special interest in GI / HPB Surgery. He was also Visiting G I Surgeon at Apollo Gleneagles Hospital, Kolkata.
In 2010, Dr Ray joined Dr Subash Gupta’s team, initially as a Fellow and subsequently became Consultant in Liver Transplant / HPB Surgery.