A team of doctors led by Dr Arvind Kumar performed robotic thoracoscopic thymectomy on six patients with myasthenia gravis, a rare autoimmune disorder at All India Institute of Medical Sciences (AIIMS), Delhi on June 21,2008 .AIIMS has been performing Video Assisted Thoracoscopic Thymectomy (VAT), or removal of thymus gland, for the past eight years involving more than 200 cases.