Dr Naresh Trehan along with his team of doctors performed a bypass surgery of Suman Singhal, aged 53 years without cutting bones by a minimally invasive technique on February 4 ,2010. This technique uses a combination of small holes in the chest and a small incision, made indirectly over the coronary artery to be bypassed. In conventional bypass, the sternum (chest or breastbone) is cut open, which takes at least eight weeks to heal. For the first time in India, multiple grafts have been put, especially at the back of the heart, through minimally invasive coronary surgery.