Satvinder Singh Bakshi1,2. 1. Department of ENT and Head, & Neck Surgery, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth, Pillaiyarkuppam, Pondicherry, 607402, India. saty.bakshi@gmail.com. 2. , House number B2, shree pushpa complex, 15th bharathi street, Ananda nagar, Pondicherry, 605009, India. saty.bakshi@gmail.com.