To prospectively assess subjective and perceptive speech/voice and swallowing function before and after radiation therapy (RT) in patients of head-and-neck squamous cell cancer (HNSCC). The study cohort comprised eligible consecutive HNSCC patients planned for curative RT from April 2018 to July 2018 who consented for the study. Prospective evaluation of speech/voice and swallowing function was done before and after RT. For subjective and perceptive evaluation of speech/voice, speech handicap index (SHI) and Grade, Roughness, Asthenia, Breathiness, and Strain (GRABS) Scale was used, respectively. For subjective and perceptive evaluation of swallowing, M D Anderson Dysphagia Inventory (MDADI) and Performance Status Scale for head and neck (PSSHN) were used, respectively. All patients were taught speech/voice and swallowing exercises before RT. Statistical analysis was performed using SYSTAT version-12 (Cranes software, Bengaluru). The study cohort comprised 30 patients of HNSCC with a median age of 57 years and male-to-female ratio of 4:1. The most common subsite was the oral cavity (43.33%) and a majority (76.66%) presented in the locally advanced stage. Post-RT there was significant improvement in speech/voice function (SHI P = 0.0006, GRABS score P = 0.003). Perceptive assessment of swallowing function by PSSHN showed significant improvement (P = 0.0032), but subjective assessment by MDADI showed no significant (P = 0.394) improvement until the first follow-up. Speech/voice function improved significantly after radiotherapy when combined with rehabilitation exercises. Swallowing function did not improve till the first follow-up. Future studies with the large number of patients and long-term follow-up are needed to document the changes in organ function.