He graduated MBBS from Maulana Azad Medical College, followed by an MD in Radiology from PGIMER Chandigarh, and obtained MRI training through a Rotary scholarship at MD Anderson Cancer Centre. He founded Mahajan Imaging -establishing one of India’s first private MRI centres in 1991. He is Founder‑Managing Director of CARING, serves as Consultant at Sir Ganga Ram Hospital and advisor to the IAEA. He was National President of the Indian Radiological & Imaging Association, Honorary Radiologist to the President of India, and awarded the Padma Shri in 2002.