Satvinder Singh Bakshi1,2, Seepana Ramesh3. 1. Dept of ENT and Head & Neck Surgery, AIIMS, Mangalagiri, Andhra Pradesh 522503, Guntur, India. saty.bakshi@gmail.com. 2. Add-House 1A, Selvam apartments, 71 Krishna nagar main road, 605008, Pondicherry, Krishna nagar, India. saty.bakshi@gmail.com. 3. Dept of ENT and Head & Neck Surgery, AIIMS, Mangalagiri, Andhra Pradesh 522503, Guntur, India.