CABG manages the surgery which patch up the stream of blood to the heart.Dr. Ranjit Jagtap. Cardiothoracic Surgeon in Pune. Dr. Ranjit Jagtap received his basic Medical College training in B J Medical College, completing his M.S. in General Surgery, under the guidance of Dr. M. J. Joshi, a world famous General Surgeon and renowned Gastrointestinal Surgeon specialised in liver surgery.