After completing BHMS from University of Calcutta with distinction, Dr. Arnav performed 3 years of hands on training as Internship and Senior House Resident at Calcutta Homeopathic medical College and D. N. De Homeopathic Medical College at Calcutta. During this period, he was under guidance of different stalwart Homeopathic Physicians of Kolkata, like Dr. (Late) Prabir Chakraborty, Dr. Prasun Banerjee, Dr. Amiya Chatterjee, Dr. R. K. Dutta, Dr. S. K. Moinuddin. There he learnt the Calcutta School of Classical Homeopathy. He also got hands on training on modern medicine from Dr. Shambhu Nath Pandit Hospital, Dr. Pavlov Hospital for Psychiatric diseases, Dr. B. C. Roy Post Graduate Institute of Pediatric Sciences. After this Dr. Mukherjee had shifted to Jaipur in early 2007. Since then he has been practicing classical homeopathy here at Jaipur for the last around 10 years.