A specialized technique for performing surgery is laparoscopic surgery. It is a minimally invasive procedure. Laparoscopic surgery in Kolkata is common nowadays for gallbladder surgery, hernia surgery, bariatric surgery and intestinal surgery. In this procedure, the surgeon makes several incisions of 0.5-1 cm in size. A trocar, which is a tubular instrument, is inserted through each port. After that, the surgeon inserts a laparoscope, which is a special tube with a light and camera, and specialized instruments through the trocars. In most cases, the surgeon uses carbon dioxide gas to inflate the abdomen for properly viewing the area. There are high-resolution video monitors in the operating room. The surgeon can view the images sent by the laparoscope on the monitor while performing the procedure.