Circumvallate papillae are supplied by

Glossopharyngeal nerve is the nerve of the third branchial arch and supplies the only muscle of that arch, the stylopharyngeus. It carries sensory fibers from the posterior one-third of tongue, tonsil, pharynx, middle ear, taste fibers from posterior one-third of the tongue and circumvallate papillae. Lastly, it provides secretomotor fibers to parotid glandReference: Chourasia head and neck; 6th edition; Page no:165