A 42-year-old male from Tamil Nadu presents with a 3-month history of unilateral epistaxis and cervical lymphadenopathy. Flexible nasopharyngoscopy reveals a mass in the nasopharynx. Biopsy confirms squamous cell carcinoma. CT head and neck shows a 4 cm nasopharyngeal mass with ipsilateral cervical lymph node involvement (N2). There is no evidence of distant metastasis on staging imaging. What is the most appropriate next step in management?