He has over 18 years of experience practising medicine in various hospitals and clinics. Dr. H.K. Agarwal currently works at Nirvan Hospital. Some of the places where Dr. H.K. Agarwal has worked in the past include KGMU and SGPGI. Apart from hospital affiliations, he has been working actively in various fields. He is also a member of prestigious institutions such as Indian Psychiatric Society, Indian Medical Association (IMA). Dr. H.K. Agarwal has been awarded Samanvay from Amity University, Best Consultant Psychiatrist in Uttar Pradesh - National Business & Service Excellence Awards, 2017. He earned his MD from University of Rajasthan, Jaipur. Thereafter, Dr. H.K. Agarwal earned MBBS from University of Rajasthan, Jaipur and M.D. (Psychiatry) from King Georges Medical College, Lucknow University.