Dr. Litan Naha Biswas is a renowned Radiation Oncologist in Kolkata and currently practices at Apollo Gleneagles Hospital, Kolkata. For the past 37 years, Dr. Litan Naha Biswas has worked as a Radiation Therapy Doctors and gained proficient skills and knowledge in the segments.Dr. Litan Naha Biswas pursued degree of MBBS from University Of Calcutta, India in 1984, MD - Radiotherapy from University Of Calcutta, India in 1987, Fellowship - ICRETT from The Union for International Cancer Control, UK in 1994 and Dr. Litan Naha Biswas is a well-known member of the Association of Radiation Oncologists of India, Indian Medical Association and Association of UICC Fellows. He has been rewarded with various awards including Awarded the DMA President’s appreciation award. and S. Gupta best paper award in the All India Rhinology conference.. Some of the treatment offered by Dr. Litan Naha Biswas are Functional Endoscopic Sinus Surgery, Functional Endoscopic Sinus Surgery, Tympanoplasty, Frontal Sinus Surgery, Rhinoplasty, Functional Endoscopic Sinus Surgery and Thyroidectomy.