He has also completed his Fellowship from the world famous vascular surgery unit at St. Mary's Hospital, London, UK.

He has also served as a faculty and consultant in Vascular and Endovascular Surgery at NIMS, Hyderabad and Christian Medical College (CMC) & Hospital, Vellore & Yashoda Hospital, Hyderabad.

Dr. Nihar stands by his motto of delivering excellent services to his patients with the help of his state of art equipment. He has been an author of over 100 renowned publications nationally and internationally and has held various seminars and conferences all over the country