Inclusion Criteria:  Aged 18 or above and less than 70 years Patient undergoing radiotherapy for HNSCC of the Oropharynx or Larynx or Hypopharynx. Stage T1-4, N0-3, M0 disease with histologically confirmed squamous cell carcinoma requiring bilateral neck radiotherapy and where sparing of contra lateral or one submandibular gland is possible Radiotherapy with concomitant chemotherapy (unless contraindicated) is the planned treatment Karnofsky performance score greater or equal 70 Available to attend long term follow- up; Ability to complete the MD Anderson Dysphagia Inventory (MDADI) and EORTC quality of life questionnaires English or Hindi Version. Willingness to undergo FEES. Written informed consent for treatment. Available to attend long term follow- up  Exclusion Criteria:  Early Carcinoma Glottis (T1-T2, N0M0) Metastatic disease. Previous radiotherapy to the head and neck region Lateralised tumours, requiring unilateral irradiation Patients requiring radiation to both submandibular glands Evidence of pre-existing swallowing dysfunction (not related to HNC); Major head and neck surgery (excluding biopsies/tonsillectomy); Tracheostomy placement Previous or concurrent illness, which in the investigator's opinion would interfere with completion of therapy, trial assessments or follow-up Any invasive malignancy within previous 2 years (other than non melanomatous skin carcinoma or cervical carcinoma in situ).