He then completed post graduate studies in Surgery in 1990 at the same institute. He did his senior residency in the Department of GI Surgery in Bombay Hospital, Mumbai, India from 1990 to 1992. He has been operating his own hospital with 20 beds and four emergency beds in the city of Bilaspur in the state Chhattisgarh of India since 1992. He began his focus in colorectal surgery in 1995. Dr. Dhandharia has presented more than 20 papers at national and international conferences. He has six national and one international publication to his credit. He is very thankful to Dr. Brij B Agarwal and Dr. Dinesh Shah for his achievements.