The march was held from AIIMS to the Parliament House and over 10,000 doctors staged a protest opposing various provisions of the Bill that seeks to replace the Medical Council of India (MCI) with a new body.
The Bill was referred to the Parliamentary Select Committee, following protests by doctors from across the country.
They had claimed that the proposed legislation would "cripple" the functioning of medical professionals by making them completely answerable to the bureaucracy and non-medical administrators.
AIIMS Resident Doctors Association (RDA) has termed the bill as "anti-poor", "anti-people" and "unacceptable" to doctors and medical students in its present form.
The Bill also proposes a common entrance exam and licentiate (exit) exam which all medical graduates will have to clear to get practising licences.
The RDA association has also written to both the Health ministry and the parliamentary committee to "remove" these clauses.